:Koi... Mil Gaya

Space Scientist Dr. Sanjay Mehra has created a computer from which he sends variations of the syllable Om into space, hoping to attract extraterrestrial life. When he receives a response, his colleagues ridicules him. While driving to home, an alien spacecraft appears overhead soon after responding to his signals on his computer. Distracted, he gets into a car accident that kills him in car explosion and injures his pregnant wife, Sonia and their son, Rohit, is born with a developmental disability. Sonia learns that surgery is the only cure, for Rohit's disability, but it could paralyze or kill him. Not wanting to lose her son, she raises him in Kasauli.

Years later, a now grown up Rohit is still a schoolboy, due to his disability and has found friends in six children. A young woman, Nisha, arrives and is initially insensitive to Rohit, because of his childish practical jokes against her. Her friend Raj, who also happens to be Rohit's former classmate and his gang attack Rohit and break his kick scooter; Sonia chides them for assaulting Rohit, saying that he did not intentionally make fun of her. Realizing her mistake, Nisha gifts Rohit a bicycle and introduces him to her parents, who are sympathetic to him. Rohit and Nisha (now friends) find Sanjay's old computer, and Rohit inadvertently summons the aliens. The aliens leave hastily, accidentally leaving a group member behind. Rohit, Nisha, his group, and Sonia befriend the alien, naming him Jadoo and discovers his psychokinetic abilities.

Raj resents Nisha's closeness to Rohit, bullying him and spreading a rumour that Raj and Nisha are getting married. The rumour upsets Nisha and Rohit, who is hurt because he thought Nisha was his girlfriend. Jadoo discovers that Rohit is disabled and uses his powers, derived from sunlight, to enhance Rohit's mental and intellectual ability. The next morning, Rohit has clear vision; a seventh-standard student, he later solves a tenth-standard mathematics problem orally (surprising his mathematics teacher and his school principal) and also answers his computer teacher who always chided him for his disability and accidentally beats up Raj's gang too.

Rohit's physical abilities increase to superhuman levels. Raj's gang challenge Rohit and group to a basketball game. Rohit scores several baskets but Raj's gang begin to cheat; when the sun comes out, Jadoo helps Rohit's group win the game. Rohit confesses his love to Nisha and she reciprocates. Raj's gang confront Rohit's group about the basketball game. While fleeing the group accidentally drops Jadoo. Constable Chelaram Sukhwani sees Jadoo in a bag and calls for backup. Led by Inspector Khurshid Khan, they capture the bag; however, Rohit rescues Jadoo. Confronted by Raj's gang, an angry Rohit overpowers them and the policemen arrive. Jadoo is not in the bag; he had escaped when Chelaram was calling the other police officers.

Khurshid, suspicious of Rohit, confronts him at his house with other officers. The police seize Jadoo and knock Rohit out. When he regains consciousness, Rohit catches up to the police vans in time to save Jadoo from being sent to the United States. The flying saucer which he had summoned with his father's computer returns, and Rohit bids a sad farewell to Jadoo. When Jadoo leaves, Rohit reverts to his old self; this saves him from prosecution by the government, who congratulate him for his actions.

Raj's gang later harass Rohit once again and insults Nisha too, challenging him to kick a ball to them. Rohit angrily kicks the ball into Raj's face and realises that Jadoo has permanently returned his superpowers. Rohit and Nisha thank Jadoo, and get married.

The cast is listed below:{{Cite web |title=Koi Mil Gaya Cast & Crew |url=https://www.bollywoodhungama.com/movie/koi-mil-gaya/cast/ |url-status=live |archive-url=https://web.archive.org/web/20200209051727/https://www.bollywoodhungama.com/movie/koi-mil-gaya/cast/ |archive-date=9 February 2020 |access-date=7 May 2021 |website=Bollywood Hungama|date=8 August 2003 }}{{Cite web |title=Koi Mil Gaya Cast |url=https://boxofficeindia.com/cast_crew.php?movieid=507 |url-status=live |archive-url=https://web.archive.org/web/20200612114328/https://boxofficeindia.com/cast_crew.php?movieid=507 |archive-date=12 June 2020 |access-date=4 May 2021 |website=Box Office India}}

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• Hrithik Roshan as Rohit Mehra: Dr. Sanjay and Sonia's mentally disabled son; Nisha's love-interest and Alien Jadoo's friend who gifts him with his superhuman powers to cure his disability
• Micky Dhamijani as child Rohit
• Preity Zinta as Nisha Malhotra: Rohit's love-interest
• Rakesh Roshan as Dr. Sanjay Mehra: A scientist; Sonia's husband and Rohit's father
• Rekha as Sonia Mehra: Dr. Sanjay's widow and Rohit's mother
• Indravardan Purohit as Jadoo: The stranded alien friend of Rohit who gifts him with his superhuman powers to cure latter's mental disability
• Prem Chopra as Harbans Saxena: District magistrate of Kasauli and Raj's father
• Rajat Bedi as Raj Saxena: Harbans' son; Nisha's former friend and Rohit's former classmate who keeps bullying Rohit with his gang
• Johnny Lever as Constable Chelaram Sukhwani: Rohit's neighbour
• Mukesh Rishi as Inspector Khurshid Khan: Incharge of Rohit's locality
• Akash Khurana as Father Robericks: Principal of the Catholic School where Rohit studied and was always supportive and sympathetic to his condition
• Ravi Jhankal as Mr. Chaturvedi: Rohit's Mathematics teacher who was supportive and sympathetic to his condition
• Mithilesh Chaturvedi as Mr. Mathur: Rohit's computer teacher who used to bully him for his mental condition
• Rajeev Verma as Mr. Malhotra: Nisha's father
• Beena Banerjee as Mrs. Malhotra: Nisha's mother
• Anjana Mumtaz as Mrs. Saxena: Harbans' wife and Raj's mother
• Anuj Pandit as Bittu Sardar: A Sikh child in Rohit's little friends group
• Mohit Makkad as Bunty: One of the child in Rohit's little friends group
• Jay Choksi as Aslam: One of the child in Rohit's little friends group
• Omkar Purohit as Chhotu: One of the child in Rohit's little friends group
• Hansika Motwani as Priya Sharma: One of the child in Rohit's little friends group
• Pranita Bishnoi as a child in Rohit's little friends group

{{div col end}}

Following the success of the romantic thriller Kaho Naa... Pyaar Hai (2000), the director Rakesh Roshan wanted to collaborate again with his son, Hrithik Roshan, who starred in the film alongside the debutante Ameesha Patel.{{Cite news |last=Jha |first=Subhash K. |date=25 July 2003 |title=Koi Mil Gaya is special: Rakesh Roshan |work=The Times of India |agency=Indo-Asian News Service |url=http://timesofindia.indiatimes.com/articleshow.cms?msid=94624 |url-status=dead |access-date=5 May 2021 |archive-url=https://web.archive.org/web/20040529072828/http://timesofindia.indiatimes.com/articleshow.cms?msid=94624 |archive-date=29 May 2004}}{{Cite news |last=Somaaya |first=Bhawana |author-link=Bhawana Somaaya |date=4 February 2000 |title=A multi-faceted star is here |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-miscellaneous/tp-others/a-multi-faceted-star-is-here/article28000086.ece |url-status=live |url-access=subscription |access-date=7 May 2021 |archive-url=https://web.archive.org/web/20210507065024/https://www.thehindu.com/todays-paper/tp-miscellaneous/tp-others/a-multi-faceted-star-is-here/article28000086.ece |archive-date=7 May 2021}} The director wanted his next project to be a child-centric film, not just a romance, which Rakesh Roshan had done many times in his career both as a director and actor.{{Cite news |last=Ferrao |first=Dominic |date=2003 |title=Rakesh Roshan: "'Koi Mil Gaya' is not a remake of 'ET'!" |work=Filmfare |url=http://movies.indiatimes.com/articleshow.cms?msid=100937 |url-status=dead |access-date=5 May 2021 |archive-url=https://web.archive.org/web/20040404144522/http://movies.indiatimes.com/articleshow.cms?msid=100937 |archive-date=4 April 2004}} He told Bollywood Hungama that he was motivated to make a film that was not "run-of-the-mill" but "an out-of-the-box yet entertaining, mainstream film", after attending the premiere of Lagaan in June 2001 during the 2nd IIFA Awards. He announced it subsequently at the ceremony while he was receiving the Best Director award for Kaho Naa... Pyaar Hai.{{Cite web |last=Adarsh |first=Taran |author-link=Taran Adarsh |date=18 June 2000 |title=Hrithik-Preity in Rakesh Roshan next |url=http://www.indiafm.com/scoop/00/jun/1806hrithik/index.shtml |url-status=dead |archive-url=https://web.archive.org/web/20010623203642/http://www.indiafm.com/scoop/00/jun/1806hrithik/index.shtml |archive-date=23 June 2001 |access-date=5 May 2021 |website=Bollywood Hungama}} The idea to make a film on extraterrestrial life came up when he saw his five-year-old granddaughter watching a series about it on a cartoon network.{{Cite news |last=R. |first=R. |date=7 August 2003 |title=In new territory |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/in-new-territory/article28444984.ece |url-status=live |url-access=subscription |access-date=5 May 2021 |archive-url=https://web.archive.org/web/20210503113136/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/in-new-territory/article28444984.ece |archive-date=3 May 2021}} He later informed Hrithik Roshan of the project when the latter was shooting the 2001 release Yaadein in Delhi; Hrithik Roshan accepted the role immediately.{{Cite web |last=Seta |first=Fenil |date=9 August 2018 |title=Exclusive: On 15th anniversary of Koi Mil Gaya, Rakesh Roshan reveals how Lagaan inspired him to think out of the box |url=https://www.bollywoodhungama.com/news/features/exclusive-15th-anniversary-koi-mil-gaya-rakesh-roshan-reveals-lagaan-inspired-think-box/ |url-status=live |archive-url=https://web.archive.org/web/20180809074619/https://www.bollywoodhungama.com/news/features/exclusive-15th-anniversary-koi-mil-gaya-rakesh-roshan-reveals-lagaan-inspired-think-box/ |archive-date=9 August 2018 |access-date=5 May 2021 |website=Bollywood Hungama}}

Rakesh Roshan used a "K" as the film's initial, his favourite letter he used in all of his directorial ventures. The film was originally titled Koi Aap Jaisa ({{translation|Someone Like You}}), Koi... Tumsa Nahin ({{translation|No One... is Like You}}), and Kaisa Jaadu Kiya ({{translation|What Kind of Magic You Have Done}}), before Koi... Mil Gaya ({{translation|I Have Found Someone...}})—which sounded more romantic to him than any of the previous titles—was finally chosen.{{Cite news |date=30 August 2020 |title=17 years of Koi Mil Gaya: 25 facts you probably didn't know about Bollywood's much-loved sci-fi drama |work=Cinema Express |url=https://www.cinemaexpress.com/photos/slideshows/2020/aug/30/17-years-of-koi-mil-gaya-25-facts-you-probably-didnt-know-about-bollywoods-much-loved-sci-fi-dram-1124--9.html |url-status=live |access-date=5 May 2021 |archive-url=https://web.archive.org/web/20200916051916/https://www.cinemaexpress.com/photos/slideshows/2020/aug/30/17-years-of-koi-mil-gaya-25-facts-you-probably-didnt-know-about-bollywoods-much-loved-sci-fi-dram-1124--1.html |archive-date=16 September 2020}}{{Cite news |last=Bhattacharya |first=Roshmila |author-link=Roshmila Bhattacharya |date=8 August 2003 |title=The great gamble |work=Screen |url=http://www.screenindia.com:80/fullstory.php?content_id=5463 |url-status=dead |access-date=27 May 2021 |archive-url=https://web.archive.org/web/20031125014913/http://www.screenindia.com/fullstory.php?content_id=5463 |archive-date=25 November 2003 }} He wrote the screenplay with Sachin Bhowmick, Honey Irani, and Robin Bhatt. This took between two and three weeks before its first draft was done in Khandala. Unfamiliar with the topic, Rakesh Roshan confessed he was initially reluctant and doubtful of the project, but Hrithik Roshan convinced him.{{Cite news |last=Sukuraman |first=Shradha |date=10 August 2003 |title=The Alien Has Landed |work=The Indian Express |url=https://indianexpress.com/article/news-archive/the-alien-has-landed/ |url-status=live |access-date=5 May 2021 |archive-url=https://web.archive.org/web/20210505190818/https://indianexpress.com/article/news-archive/the-alien-has-landed/ |archive-date=5 May 2021}} According to Rakesh Roshan, the screenwriters were "contributing new ideas since the premise itself was so new". He described it as "a very emotional, thematic film" and "the greatest challenge" of his life, saying that science fiction was not the main theme of the film.{{Cite news |last=Kumar |first=Anuj |date=7 August 2003 |title=The birth of a hit? |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/the-birth-of-a-hit/article28444891.ece |url-status=live |url-access=subscription |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20210503113359/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/the-birth-of-a-hit/article28444891.ece |archive-date=3 May 2021}} Though many have commented on the film's similarities to E.T. the Extra-Terrestrial (1982),{{cite news |author= |date=14 November 2022 |title=Children's Day 2022: From 'Shrek' to 'Koi Mil Gaya' |work=The Economic Times |url=https://economictimes.indiatimes.com/magazines/panache/childrens-day-2022-from-shrek-to-koi-mil-gaya-must-watch-movies-for-your-kids/articleshow/95505378.cms |access-date=22 January 2023 |archive-date=22 January 2023 |archive-url=https://web.archive.org/web/20230122065730/https://economictimes.indiatimes.com/magazines/panache/childrens-day-2022-from-shrek-to-koi-mil-gaya-must-watch-movies-for-your-kids/articleshow/95505378.cms |url-status=live }} Rakesh Roshan denied being inspired by it.{{Cite web |date=7 August 2003 |title='Koi... Mil Gaya is not an Indian E.T.' |url=https://www.rediff.com/movies/2003/aug/07rakesh.htm |url-status=live |archive-url=https://web.archive.org/web/20230123063048/https://www.rediff.com/movies/2003/aug/07rakesh.htm |archive-date=23 January 2023 |access-date=23 January 2023 |website=Rediff.com}} Javed Siddiqui finished the dialogue.{{Cite AV media |title=Koi... Mil Gaya |date=8 August 2003 |last=Roshan |first=Rakesh |language=Hindi |publisher=Filmkraft Productions |author-link=Rakesh Roshan |place=India |time=1:35 |medium=Motion picture}} Koi... Mil Gaya was produced by Rakesh Roshan under Filmkraft Productions, which he established in 1980, and distributed by Yash Raj Films.{{Cite news |last=Farook |first=Farhana |date=16 November 2012 |title=Hrithik has seen my failures – Rakesh Roshan |work=Filmfare |url=https://www.filmfare.com/interviews/hrithik-has-seen-my-failures-rakesh-roshan-1703.html |url-status=live |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20210506064557/https://www.filmfare.com/interviews/hrithik-has-seen-my-failures-rakesh-roshan-1703.html |archive-date=6 May 2021}}{{Cite news |date=11 December 2004 |title=Yash Chopra to foray into English film distribution |work=The Financial Express |location=Mumbai, India |url=https://www.financialexpress.com/archive/yash-chopra-to-foray-into-english-film-distribution/122432/ |url-status=live |access-date=5 May 2021 |archive-url=https://web.archive.org/web/20200915115645/https://www.financialexpress.com/archive/yash-chopra-to-foray-into-english-film-distribution/122432/ |archive-date=15 September 2020}}

{{multiple image

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| image2 = Preity Zinta at an event for ISHKQ IN PARIS.jpg

| alt2 = Preity Zinta in 2013

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| footer = Hrithik Roshan and Preity Zinta were cast in the lead roles in Koi... Mil Gaya

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When Koi... Mil Gaya was announced, Rakesh Roshan said that his son Hrithik Roshan and Preity Zinta would play the lead roles in the film;{{Cite news |last=Siddiqui |first=Rana A. |date=9 September 2002 |title=Poised for pretty good times! |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/poised-for-pretty-good-times/article28380486.ece |url-status=live |url-access=subscription |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20210506084557/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/poised-for-pretty-good-times/article28380486.ece |archive-date=6 May 2021}} it marked the actors' second collaboration after Mission Kashmir (2000).{{Cite news |last=Shamim |first=M. |date=29 October 2000 |title=Between blazing guns and roaring romance |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-miscellaneous/tp-others/between-blazing-guns-and-roaring-romance/article28051356.ece |url-status=live |url-access=subscription |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20210511061322/https://www.thehindu.com/todays-paper/tp-miscellaneous/tp-others/between-blazing-guns-and-roaring-romance/article28051356.ece |archive-date=11 May 2021}}{{Cite news |date=17 December 2003 |title=Friendship evening |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-life/friendship-evening/article28655141.ece |url-status=live |url-access=subscription |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20210506205711/https://www.thehindu.com/todays-paper/tp-life/friendship-evening/article28655141.ece |archive-date=6 May 2021}} Playing against type, Roshan was cast as the developmentally disabled man Rohit.{{Cite news |date=18 June 2003 |title='Koi Mil Gaya' |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-life/koi-mil-gaya/article28642609.ece |url-status=live |url-access=subscription |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20210504055523/https://www.thehindu.com/todays-paper/tp-life/koi-mil-gaya/article28642609.ece |archive-date=4 May 2021}} He admitted the role had reminded him of his childhood, saying he could eat as many chocolates as he wanted and "became a baby and everybody was so caring towards me".{{Cite web |last=Ashraf |first=Syed Firdaus |date=6 August 2003 |title=Hrithik Roshan relives his childhood in Koi Mil Gaya |url=https://www.rediff.com/movies/2003/aug/06sld1.htm |url-status=live |archive-url=https://web.archive.org/web/20030815073631/https://www.rediff.com/movies/2003/aug/06sld1.htm |archive-date=15 August 2003 |access-date=6 May 2021 |website=Rediff.com}} Hrithik Roshan called it the "most challenging role" of his career,{{Cite news |last=Nayar |first=Mandira |date=4 August 2003 |title=A space film for the re-launch of Hrithik |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-life/a-space-film-for-the-re-launch-of-hrithik/article28646344.ece |url-status=live |url-access=subscription |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20210506003639/https://www.thehindu.com/todays-paper/tp-life/a-space-film-for-the-re-launch-of-hrithik/article28646344.ece |archive-date=6 May 2021}}{{Cite news |last=Bhattacharya |first=Roshmila |date=8 August 2003 |title=A child at heart |work=Screen |url=http://www.screenindia.com:80/fullstory.php?content_id=5462 |url-status=dead |access-date=13 July 2021 |archive-url=https://web.archive.org/web/20031119061537/http://www.screenindia.com/fullstory.php?content_id=5462 |archive-date=19 November 2003 }} but revealed he had accepted the part after his father first offered it to him, confessing that his excitement made the role feel much easier.{{Cite news |last=Kumar |first=Anuj |date=12 August 2003 |title=Superstar is here again |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/superstar-is-here-again/article28445328.ece |url-status=live |url-access=subscription |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20210503114413/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/superstar-is-here-again/article28445328.ece |archive-date=3 May 2021}} In a retrospective interview with Mint, he explained that he "revisited that earlier passion I had felt when I did my first film".{{Cite news |last=Jhunjhunwala |first=Udita |date=13 May 2010 |title='The world is out to provoke you' |work=Mint |url=https://www.livemint.com/Leisure/7a5LSpAOMTCMHLUJeeYFAL/8216The-world-is-out-to-provoke-you8217.html |url-status=live |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20210507122314/https://www.livemint.com/Leisure/7a5LSpAOMTCMHLUJeeYFAL/8216The-world-is-out-to-provoke-you8217.html |archive-date=7 May 2021}} To provide an accurate portrayal, Hrithik Roshan lost {{convert|8|kg}}, changed his hairstyle, and wore loose clothes to cover his well-built body.

Zinta was given the role of Rohit's friend and then-wife, Nisha, after Rakesh Roshan saw her 20-minute performance in Mani Ratnam's 1998 thriller Dil Se.. and was impressed by it.{{Cite web |last1=Pant |first1=Seema |last2=Ashraf |first2=Syed Firdaus |date=7 August 2003 |title='Koi... Mil Gaya is not an Indian E.T.' |url=https://www.rediff.com/movies/2003/aug/07rakesh.htm |url-status=live |archive-url=https://web.archive.org/web/20030809020835/https://www.rediff.com/movies/2003/aug/07rakesh.htm |archive-date=9 August 2003 |access-date=4 May 2021 |website=Rediff.com}}{{Cite news |last=Chopra |first=Anupama |author-link=Anupama Chopra |date=18 September 2000 |title=Sassy Sirens |work=India Today |url=http://www.india-today.com/itoday/20000918/cinema.shtml |url-status=dead |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20101124045257/http://india-today.com/itoday/20000918/cinema.shtml |archive-date=24 November 2010}} It was originally to be played by Aishwarya Rai Bachchan or Kareena Kapoor; however, he saw that Rai Bachchan would not be a suitable co-actor as she was older than Hrithik Roshan, while Kapoor opted out because she had collaborated with the actor on many projects.{{Cite web |last=Tanwar |first=Sarita |date=19 June 2001 |title=It's Hrithik and Preity again! |url=https://www.rediff.com/entertai/2001/jun/19koi.htm |url-status=live |archive-url=https://web.archive.org/web/20010624024754/https://www.rediff.com/entertai/2001/jun/19koi.htm |archive-date=24 June 2001 |access-date=6 May 2021 |website=Rediff.com}} Zinta, who enjoyed her part as Nisha and called Koi... Mil Gaya a special film for her,{{Cite news |last=Parkar |first=Hamida |date=September 2003 |title=Zip Zap Zinta: A joy ride with Preity |work=Filmfare |url=http://filmfaremagazine.indiatimes.com/articleshow.cms?msid=149143&right=1&fright=1&botlink=1 |url-status=dead |access-date=6 March 2021 |archive-url=https://web.archive.org/web/20040513011634/http://filmfaremagazine.indiatimes.com/articleshow.cms?msid=149143&right=1&fright=1&botlink=1 |archive-date=13 May 2004}}{{Cite news |last=Jha |first=Subhash K. |date=5 July 2003 |title=I'm a happy-go-lucky chatterbox: Preity |work=The Times of India |agency=Indo-Asian News Service |url=http://timesofindia.indiatimes.com/articleshow.cms?msid=61267 |url-status=dead |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20040313074843/http://timesofindia.indiatimes.com/articleshow.cms?msid=61267 |archive-date=13 March 2004}} described the role as an attempt to change her "conventional heroine" image, telling Rediff.com that: "If I only did the glam-and-pout act, I would have stuck out like a sore thumb and destroyed the film's timeless texture."{{Cite web |last=Jha |first=Subhash K. |date=4 August 2003 |title='There's no sexuality between Hrithik and me' |url=https://www.rediff.com/movies/2003/aug/04preity.htm |url-status=live |archive-url=https://web.archive.org/web/20030806053819/https://www.rediff.com/movies/2003/aug/04preity.htm |archive-date=6 August 2003 |access-date=6 May 2021 |website=Rediff.com}} The part proved to be a new challenge for her, and she found it to be her career's "toughest" role as it was "a very-controlled character".{{Cite news |date=2004 |title=Preity Zinta: "I am dying to win an award in the 'Best Villain' category" |work=Filmfare |url=http://filmfareawards.indiatimes.com/articleshow/articleshow/501844.cms |url-status=dead |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20040312183857/http://filmfareawards.indiatimes.com/articleshow/articleshow/501844.cms |archive-date=12 March 2004}} Hrithik Roshan spoke positively of his rapport with her, and said he would "have been only half effective" if she was not his co-star.{{Cite news |last=Lalwani |first=Vickey |date=21 September 2003 |title=Hit... Mil Gaya |work=Deccan Herald |url=http://www.deccanherald.com/deccanherald/sep21/ent1.asp |url-status=dead |access-date=6 May 2021 |archive-url=https://web.archive.org/web/20031221225458/http://www.deccanherald.com/deccanherald/sep21/ent1.asp |archive-date=21 December 2003}}

In July 2001, Rekha joined the cast and portrays Rohit's mother Sonia, a part that was specifically written by Rakesh Roshan for her.{{Cite news |last=Raval |first=Sheela |date=6 August 2001 |title=Playing mom |work=India Today |url=https://www.indiatoday.in/magazine/society-the-arts/films/story/20010806-actress-rekha-to-play-hrithik-roshan-mother-in-rakesh-roshan-koi-mil-gaya-773965-2001-08-06 |url-status=live |access-date=7 March 2021 |archive-url=https://web.archive.org/web/20210505115123/https://www.indiatoday.in/magazine/society-the-arts/films/story/20010806-actress-rekha-to-play-hrithik-roshan-mother-in-rakesh-roshan-koi-mil-gaya-773965-2001-08-06 |archive-date=5 May 2021}}{{Cite web |last=Adarsh |first=Taran |date=19 July 2001 |title=Rekha to play mother to Hrithik |url=http://www.indiafm.com/scoop/00/jul/1907rekha/index.shtml |url-status=dead |archive-url=https://web.archive.org/web/20031004095656/http://www.indiafm.com/scoop/00/jul/1907rekha/index.shtml |archive-date=4 October 2003 |access-date=7 May 2021 |website=Bollywood Hungama}} Rakesh Roshan recommended she play the character as soon as he had finished writing the film's screenplay. "I didn't even have a back-up artiste in mind for her role. If she had turned me down, I wonder what I would've done", he told Filmfare.{{Cite news |last=Iyer |first=Meena |date=August 2003 |title=Ho Gaya! |work=Filmfare |url=http://filmfaremagazine.indiatimes.com/articleshow.cms?msid=99345&right=1&fright=1&botlink=1 |url-status=dead |access-date=7 May 2021 |archive-url=https://web.archive.org/web/20040903201919/http://filmfaremagazine.indiatimes.com/articleshow.cms?msid=99345&right=1&fright=1&botlink=1 |archive-date=3 September 2004}} Discussing the film and its casting with the press, Hrithik Roshan said that she was the best on-screen mother and called her "marvellous".{{Cite news |last=Kusnur |first=Narendra |date=6 August 2003 |title=Hrithik Roshan speaks on 'Koi Mil Gaya' |work=Mid-Day |url=http://web.mid-day.com/entertainment/movies/2003/august/60423.htm |url-status=dead |access-date=7 May 2021 |archive-url=https://web.archive.org/web/20030808010331/http://web.mid-day.com/entertainment/movies/2003/august/60423.htm |archive-date=8 August 2003}} Rekha saw that her part was "not too big", but believed that the role's motherhood aspect made it "worthwhile".{{Cite news |last=Mahesh |first=Chitra |date=13 December 2001 |title=Learning from experiences |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-miscellaneous/tp-others/learning-from-experiences/article28359074.ece |url-status=live |url-access=subscription |access-date=7 May 2021 |archive-url=https://web.archive.org/web/20210417072658/https://www.thehindu.com/todays-paper/tp-miscellaneous/tp-others/learning-from-experiences/article28359074.ece |archive-date=17 April 2021}} The film was her second project with Zinta following Dil Hai Tumhaara in 2002;{{Cite news |last=Salam |first=Ziya Us |author-link=Ziya Us Salam |date=9 September 2002 |title=The week of affairs of the heart... |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/the-week-of-affairs-of-the-heart/article28380489.ece |url-status=live |url-access=subscription |access-date=7 May 2021 |archive-url=https://web.archive.org/web/20210417074945/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/the-week-of-affairs-of-the-heart/article28380489.ece |archive-date=17 April 2021}} it also reunited her with Rakesh Roshan after both had worked together on several films such as Khubsoorat (1980) and Khoon Bhari Maang (1989). After Anil Kapoor, Jackie Shroff, and Rishi Kapoor rejected the role, Rakesh Roshan decided to play the small role of Rohit's father and Sonia's husband, the scientist Sanjay. The film marked his comeback to acting following the 1999 comedy-drama Mother.

Indravadan J. Purohit got the part as the alien Jadoo. According to him, Rakesh Roshan had offered the role to 30 or 40 people before he gave it to him without any screen tests. To prepare, Purohit lost several kilograms of weight, joined a gym, and followed a strict diet.{{Cite news |last=Janardan |first=Priya |date=9 August 2003 |title=Meet the 'Jadoo' of Koi Mil Gaya |work=Mid-Day |location=Borivali, India |url=http://www.mid-day.com/metro/borivli/2003/august/60759.htm |url-status=dead |access-date=7 May 2021 |archive-url=https://web.archive.org/web/20030810095452/http://www.mid-day.com/metro/borivli/2003/august/60759.htm |archive-date=10 August 2003}} Four months before the beginning of shooting, he went to Australia to model his 15 kilogram (33 lb.), three foot (nearly one metre) animatronical mask, which was created by the Australian artists James Colmer and Lara Denman from Bimini Special Effects Studios. They were both emotional when Rakesh Roshan narrates the film's screenplay, and they later showed a number of sketches for the mask that took a half-hour each to draw. The mask took nearly a year to build.{{Cite news |date=4 April 2014 |title=The man behind Jadoo's mask |work=Deccan Chronicle |url=https://www.deccanchronicle.com/140404/entertainment-bollywood/gallery/man-behind-jadoo-mask |url-status=live |access-date=7 May 2021 |archive-url=https://web.archive.org/web/20140405080008/https://www.deccanchronicle.com/140404/entertainment-bollywood/gallery/man-behind-jadoo-mask |archive-date=5 April 2014}}{{Cite web |date=7 August 2003 |title=Koi Mil Gaya not the first Bollywood movie to deal with extra-terrestrials |url=http://www.indiafm.com/scoop/03/aug/0708kmg/index.shtml |url-status=dead |archive-url=https://web.archive.org/web/20030809010849/http://www.indiafm.com/scoop/03/aug/0708kmg/index.shtml |archive-date=9 August 2003 |access-date=7 May 2021 |website=Bollywood Hungama |publisher=IndiaFM News Bureau}} and cost {{INRConvert|100|m}}.{{Cite web |last=Adarsh |first=Taran |date=11 September 2002 |title=Rakesh Roshan on Koi Mil Gaya |url=http://indiafm.com:80/scoop/02/sep/1109kmg/index.shtml |url-status=dead |archive-url=https://web.archive.org/web/20030212044743/http://indiafm.com/scoop/02/sep/1109kmg/index.shtml |archive-date=12 February 2003 |access-date=7 May 2021 |website=Bollywood Hungama}} Because the mask was heavy, Purohit needed oxygen after shooting every one of his scenes to avoid suffocating. Having starred in more than 300 films (all of which feature him in comic roles), he thought with Koi... Mil Gaya he got "a role of a lifetime" and considered the film to be a career boost.

File:Preity Zinta and Rakesh Roshan at the Mahurat of Koi... Mil Gaya.jpg at the muhurat of Koi... Mil Gaya in 2001]]

Principal photography for Koi... Mil Gaya began on 12 November 2001, in Film City, during the Dhanteras celebration.{{Cite web |last=Adarsh |first=Taran |date=13 November 2001 |title=Shooting of Koi Mil Gaya starts at Film City |url=http://www.indiafm.com/scoop/00/nov/1311kmg/index.shtml |url-status=dead |archive-url=https://web.archive.org/web/20011207191519/http://www.indiafm.com/scoop/00/nov/1311kmg/index.shtml |archive-date=7 December 2001 |access-date=7 May 2021 |website=Bollywood Hungama}} The total budget ranged from {{INRConvert|250|m}} to {{INRConvert|350|m}}, making it the most expensive film Rakesh Roshan had made at the time. Ravi K. Chandran and Sameer Arya were the cinematographers, while Sharmishta Roy was the production designer. Rocky Star and Komal Shahani designed the costumes for the rest of the cast. Farah Khan, Raju Khan, and Ganesh Hegde served as the choreographers, and Allan Amin and Tinu Verma did the action direction. A mall replica was built in the film complex for the film's 14-day shooting schedule. A schedule in Canada was completed after three days. In September 2002, the entertainment portal Bollywood Hungama reported that the film was 40 percent completed.

Chandran used shadows and smoke to make the film's sets look dark for the scenes that feature aliens, as he faced difficulties shooting those scenes in bright light. The spaceship, in which Jadoo visited Earth in the film, was designed by Colmer and Denman and built in a year.{{Cite web |last=Verma |first=Sukanya |date=7 July 2003 |title=Close encounters of the third kind |url=https://www.rediff.com/movies/2003/jul/07intro.htm |url-status=live |archive-url=https://web.archive.org/web/20030709025108/https://www.rediff.com/movies/2003/jul/07intro.htm |archive-date=9 July 2003 |access-date=7 May 2021 |website=Rediff.com}}{{Cite news |last=Satyamurthy |first=K. |date=6 February 2004 |title=Recognition |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-life/recognition/article28658197.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210505103056/https://www.thehindu.com/todays-paper/tp-life/recognition/article28658197.ece |archive-date=5 May 2021}} During filming, Hrithik Roshan was also shooting three other projects—Na Tum Jaano Na Hum (2002), Mujhse Dosti Karoge! (2002), and Main Prem Ki Diwani Hoon (2003). Koi... Mil Gaya took place in Bali, Rajasthan, Bhimtal, Western Europe, Kasauli, Nainital, and New Zealand.{{Cite web |last=Dubey |first=Bharati |date=10 January 2002 |title=Hrithik: Hung, drawn and dancing in the rain |url=https://www.rediff.com/movies/2002/jan/10hri.htm |url-status=live |archive-url=https://web.archive.org/web/20030827213113/https://www.rediff.com/movies/2002/jan/10hri.htm |archive-date=27 August 2003 |access-date=7 May 2021 |website=Rediff.com}}{{Cite news |last=Singh |first=Sangeeta |date=1 October 2005 |title=Chilling in Kasauli |work=Business Standard |location=New Delhi, India |url=https://www.business-standard.com/article/beyond-business/chilling-in-kasauli-105100101014_1.html |url-status=live |access-date=7 May 2021 |archive-url=https://web.archive.org/web/20151108185010/https://www.business-standard.com/article/beyond-business/chilling-in-kasauli-105100101014_1.html |archive-date=8 November 2015}} In 2018, Rakesh Roshan revealed its climax sequences were shot in two different versions: in the first one, Rohit lost all of his powers after Jadoo left Earth, while in the second, Rohit did not lose them. After hearing opinions from many directors (such as Aditya Chopra, Karan Johar, Subhash Ghai, and Yash Chopra, he decided to use the second ending, presuming the audience would be satisfied by it.

Shooting ended in March 2003,{{Cite web |last=Warrier |first=Shobha |author-link=Shobha Warrier |date=21 January 2003 |title='Films I work in should give me a high' |url=https://www.rediff.com/movies/2003/jan/21ravi.htm |url-status=live |archive-url=https://web.archive.org/web/20030126100934/https://www.rediff.com/movies/2003/jan/21ravi.htm |archive-date=26 January 2003 |access-date=8 March 2021 |website=Rediff.com}} and Koi... Mil Gaya was edited by Sanjay Verma. With help from the Bangalore-based company Compudyne Winfosys, the American artists Marc Klobe and Craig Mumma, who previously collaborated on the science fiction films Independence Day (1996) and Godzilla (1998), were involved in the special effects. They were enthusiastic about their first Bollywood project, and Rakesh Roshan asked them to be thrifty; they spent {{INRConvert|40|m}}.{{Cite web |last=Wanvari |first=Anil |date=29 October 2004 |title=Indian VFX: On the Verge of Breaking Out |url=https://www.awn.com/vfxworld/indian-vfx-verge-breaking-out |url-status=live |archive-url=https://web.archive.org/web/20170327223646/https://www.awn.com/vfxworld/indian-vfx-verge-breaking-out |archive-date=27 March 2017 |access-date=8 May 2021 |website=Animation World Network}} Nonetheless, the director confessed that the film's total cost was still excessive for him and attributed this problem to the special effects and making Jadoo's costumes.

{{Main|Koi... Mil Gaya (soundtrack)}}

Rajesh Roshan composed the soundtrack and background score for Koi... Mil Gaya.{{Cite news |last=Jha |first=Subhash K. |date=24 July 2003 |title='I feel like a misfit in Bollywood' |work=The Times of India |agency=Indo-Asian News Service |url=http://timesofindia.indiatimes.com/articleshow.cms?msid=93199 |url-status=dead |access-date=8 May 2021 |archive-url=https://web.archive.org/web/20040315015425/http://timesofindia.indiatimes.com/articleshow.cms?msid=93199 |archive-date=15 March 2004}} Ibrahim Ashk, Nasir Faraaz, and Dev Kohli wrote the lyrics, while Udit Narayan, K. S. Chithra, Alka Yagnik, Tarsame Singh Saini, Shaan, Kavita Krishnamurti, Baby Sneha, Adnan Sami, and Preeti Uttam Singh performed the vocals.{{Cite web |last=Khanna |first=Anish |date=2003 |title=Koi... Mil Gaya (Music) |url=https://planetbollywood.com/Music/KoiMilGaya/ |url-status=live |archive-url=https://web.archive.org/web/20030627173355/https://planetbollywood.com/Music/KoiMilGaya/ |archive-date=27 June 2003 |access-date=8 May 2021 |website=Planet Bollywood}} The album was sold for {{INRConvert|50|m}} to Saregama who released it on 28 May 2003.{{Cite news |last=Chopra |first=Anupama |date=13 October 2003 |title=Sold for a song |work=India Today |url=https://www.indiatoday.in/magazine/society-the-arts/story/20031013-piracy-falling-sales-force-music-firms-to-cut-down-on-purchase-filmmakers-sell-music-cheap-791654-2003-10-13 |url-status=live |access-date=8 May 2021 |archive-url=https://web.archive.org/web/20210505132619/https://www.indiatoday.in/magazine/society-the-arts/story/20031013-piracy-falling-sales-force-music-firms-to-cut-down-on-purchase-filmmakers-sell-music-cheap-791654-2003-10-13 |archive-date=5 May 2021}}{{Cite web |title=Rajesh Roshan – Koi... Mil Gaya |url=https://www.discogs.com/Rajesh-Roshan-Koi-Mil-Gaya/release/13863618 |url-status=live |archive-url=https://web.archive.org/web/20210228215027/https://www.discogs.com/Rajesh-Roshan-Koi-Mil-Gaya/release/13863618 |archive-date=28 February 2021 |access-date=10 May 2021 |website=Discogs|date=May 2003 }}

Koi... Mil Gaya was one of the most anticipated Indian films of 2003, owing to its science fiction genre, one rarely used by any Indian films before, and the character Jadoo.{{Cite news |last=Samant |first=Janhavi |date=8 August 2003 |title=Hit mil gaya, predicts film industry |work=Mid-Day |url=http://web.mid-day.com:80/entertainment/movies/2003/august/60628.htm |url-status=dead |access-date=8 May 2021 |archive-url=https://web.archive.org/web/20030809121835/http://web.mid-day.com/entertainment/movies/2003/august/60628.htm |archive-date=9 August 2003}}{{Cite news |date=13 August 2003 |title=A dream run |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-life/a-dream-run/article28646846.ece |url-status=live |url-access=subscription |access-date=8 May 2021 |archive-url=https://web.archive.org/web/20210503114508/https://www.thehindu.com/todays-paper/tp-life/a-dream-run/article28646846.ece |archive-date=3 May 2021}} Promoted with the tagline, "You Are Not Alone...", the film was targeted at children and parents.{{Cite news |date=1 June 2003 |title=Tease Me, Tease Me |work=The Indian Express |url=https://indianexpress.com/article/news-archive/tease-me-tease-me/ |url-status=live |access-date=8 May 2021 |archive-url=https://web.archive.org/web/20210508215452/https://indianexpress.com/article/news-archive/tease-me-tease-me/ |archive-date=8 May 2021}}{{Cite news |date=28 October 2003 |title=Making waves |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/making-waves/article28454100.ece |url-status=live |url-access=subscription |access-date=8 May 2021 |archive-url=https://web.archive.org/web/20210503115334/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/making-waves/article28454100.ece |archive-date=3 May 2021}} The TV spots, created by Prime Focus company, were aired on television for a week. As a part of the promotion, MTV India managed a special show for the film, titled MTV Making of the Movie (containing interviews of the cast and crew) which aired between 10 and 14 August.{{Cite news |last1=Malhotra |first1=Anjali |last2=Kannan |first2=K. |date=8 August 2003 |title=Boosting Hrithik |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-life/boosting-hrithik/article28646575.ece |url-status=live |url-access=subscription |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20210503113428/https://www.thehindu.com/todays-paper/tp-life/boosting-hrithik/article28646575.ece |archive-date=3 May 2021}}

After seeing its promotional trailers, Komal Nahta, the editor of the trade magazine Film Information, reported: "This has been my gut feeling ever since I heard the narration of the film concept. But the magic of the film comes across even through the promos." Amod Mehra said that the film's themes would successfully attract an audience, giving "adults ... a chance to relive their childhood". Sharing the same sentiments, the critic and film trade observer Taran Adarsh added that "the combination of Hrithik, Rakesh and Rajesh Roshan" would make its opening "bumper".{{Cite web |last=Nair |first=Priyanka |date=7 August 2003 |title='Hrithik is the jaadoo of the industry' |url=https://www.rediff.com/movies/2003/aug/07react.htm |url-status=live |archive-url=https://web.archive.org/web/20210505120647/https://www.rediff.com/movies/2003/aug/07react.htm |archive-date=5 May 2021 |access-date=8 May 2021 |website=Rediff.com}}

A special screening was held for Prime Minister Atal Bihari Vajpayee and Deputy Prime Minister Lal Krishna Advani along with their families on 2 August 2003 in Mumbai.{{Cite news |date=3 August 2003 |title=PM, Deputy PM watch Koi Mil Gaya |work=The Times of India |agency=Times News Network |location=New Delhi, India |url=https://timesofindia.indiatimes.com//india/PM-Deputy-PM-watch-Koi-Mil-Gaya/articleshow/109978.cms |url-status=live |access-date=8 May 2021 |archive-url=https://web.archive.org/web/20210505120650/https://timesofindia.indiatimes.com//india/PM-Deputy-PM-watch-Koi-Mil-Gaya/articleshow/109978.cms |archive-date=5 May 2021}} After watching the film, Vajpayee told Rakesh Roshan that he had made "a very good film". The film was released theatrically six days later and clashed with Vikram Bhatt's Footpath and Satish Kaushik's Tere Naam.{{Cite news |date=16 August 2003 |title=Salman Vs Hrithik, filmi-style |work=The Times of India |agency=Times News Network |url=https://timesofindia.indiatimes.com/lucknow-times/Salman-Vs-Hrithik-filmi-style/articleshow/134135.cms |url-status=live |access-date=8 May 2021 |archive-url=https://web.archive.org/web/20200919052012/https://timesofindia.indiatimes.com/lucknow-times/Salman-Vs-Hrithik-filmi-style/articleshow/134135.cms |archive-date=19 September 2020}} According to Rediff.com's Syed Firdaus Ashraf, who attended its premiere in Mumbai, he saw that children would continuously shout, "Jadoo! Jadoo!". He also reported that the film's tickets were being sold illegally by black marketeers at a higher price.{{Cite web |last=Ashraf |first=Syed Firdaus |date=8 August 2003 |title=Koi... Mil Gaya: First day, first show! |url=https://www.rediff.com/movies/2003/aug/08sld1.htm |url-status=live |archive-url=https://web.archive.org/web/20210506154155/https://www.rediff.com/movies/2003/aug/08sld1.htm |archive-date=6 May 2021 |access-date=9 May 2021 |website=Rediff.com}}

It was screened at the 2nd International Special Film Festival (organised by ActionAid) on 14–20 March 2003 and the 15th NatFilm Festival on 11 April.{{Cite news |last=K. |first=Kannan |date=7 September 2004 |title=Special films, special fest |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-life/special-films-special-fest/article28672583.ece |url-status=live |url-access=subscription |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20210503141602/https://www.thehindu.com/todays-paper/tp-life/special-films-special-fest/article28672583.ece |archive-date=3 May 2021}}{{Cite web |title=Natfilm 2004 |url=http://biffen.tangora.net/page214.aspx |url-status=dead |archive-url=https://web.archive.org/web/20141204171445/http://biffen.tangora.net/page214.aspx |archive-date=4 December 2014 |access-date=9 May 2021 |website=Biffen Art Cinema |language=da}}

The Central Board of Film Certification finished the censorship review of the film on 25 July and gave it a "U" (suitable for all age groups) certification.{{Cite web |title=Censor Details: Koi Mil Gaya |url=http://www.indiafm.com/movies/censor/7019/index.html |url-status=dead |archive-url=https://web.archive.org/web/20070123165733/http://www.indiafm.com/movies/censor/7019/index.html |archive-date=23 January 2007 |access-date=8 May 2021 |website=Bollywood Hungama}} Koi... Mil Gaya garnered high expectations from trade analysts as well, which left Hrithik Roshan restless.{{Cite web |last=Jha |first=Subhash K. |date=9 August 2003 |title='I couldn't sleep before the first preview' |url=https://www.rediff.com/movies/2003/aug/09hrithik.htm |url-status=live |archive-url=https://web.archive.org/web/20030811004518/https://www.rediff.com/movies/2003/aug/09hrithik.htm |archive-date=11 August 2003 |access-date=8 May 2021 |website=Rediff.com}}

A German-dubbed version was released under the title of Sternenkind ({{translation|Star Child}}) in Germany, Austria, and Switzerland during Christmas of 2005.{{Cite web |date=24 October 2005 |title=German version of Koi Mil Gaya |url=http://www.indiafm.com/news/2005/10/24/6088/index.html |url-status=dead |archive-url=https://web.archive.org/web/20051225121702/http://www.indiafm.com/news/2005/10/24/6088/index.html |archive-date=25 December 2005 |access-date=9 May 2021 |website=Bollywood Hungama |publisher=IndiaFM News Bureau}}

Distributed by Yash Raj Films, it was released on DVD on 15 September 2003 in a single-disc pack.{{Cite web |date=15 September 2003 |title=Koi... Mil Gaya [DVD] [2003] |url=https://www.amazon.co.uk/Koi-Mil-Gaya-Hrithik-Roshan/dp/B0000BZNJL |url-status=live |archive-url=https://web.archive.org/web/20160325234216/http://www.amazon.co.uk/Koi-Mil-Gaya-Hrithik-Roshan/dp/B0000BZNJL |archive-date=25 March 2016 |access-date=9 May 2021 |website=Amazon}} It is also available on CD and VCD distributed by Moser Baer and Eros International, respectively.{{Cite web |title=Koi Mil Gaya |url=https://www.amazon.in/Koi-Mil-Gaya/dp/B08295TWG8 |url-status=live |archive-url=https://web.archive.org/web/20200918135837/https://www.amazon.in/Koi-Mil-Gaya/dp/B08295TWG8 |archive-date=18 September 2020 |access-date=9 May 2021 |website=Amazon}}{{Cite web |title=Koi... Mil Gaya VCD |url=https://www.induna.com/1000015585-productdetails/ |url-status=live |archive-url=https://web.archive.org/web/20210121111402/https://www.induna.com/1000015585-productdetails/ |archive-date=21 January 2021 |access-date=9 May 2021 |website=Induna.com}} According to an estimate by The Economic Times in June 2004, the DVD version had sold around 15,000 units, while for the VCD version sold 150,000 units; the film thus grossed {{INRConvert|40|m}}.{{Cite news |last=Nag |first=Ashoke |date=2 June 2004 |title=Bollywood sets VCD market on fire |work=The Economic Times |location=Kolkata, India |url=https://economictimes.indiatimes.com/bollywood-sets-vcd-market-on-fire/articleshow/713721.cms |url-status=live |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20200919053846/https://economictimes.indiatimes.com/bollywood-sets-vcd-market-on-fire/articleshow/713721.cms |archive-date=19 September 2020}} Eros International released its triple-disc CD version in the NTSC widescreen format as well.{{Cite web |title=Koi…Mil Gaya |url=https://www.amazon.in/Koi-Mil-Gaya-Hrithik-Roshan/dp/B006QGDYQE |url-status=live |archive-url=https://web.archive.org/web/20131012031430/http://www.amazon.in/Koi-Mil-Gaya-Hrithik-Roshan/dp/B006QGDYQE |archive-date=12 October 2013 |access-date=9 May 2021 |website=Amazon}}

The television rights to Koi... Mil Gaya were sold to Sony Entertainment Television in February 2004,{{Cite web |date=21 February 2004 |title=Sony bags rights to 'Koi Mil Gaya', 'Baghban' |url=https://www.indiantelevision.com/headlines/y2k4/feb/feb190.htm |url-status=live |archive-url=https://web.archive.org/web/20040412200912/https://www.indiantelevision.com/headlines/y2k4/feb/feb190.htm |archive-date=12 April 2004 |access-date=9 May 2021 |website=Indian Television}} and the worldwide premiere occurred on 24 October.{{Cite news |date=22 October 2004 |title=Now NDTV India beats Aaj Tak in market share |work=The Economic Times |url=https://economictimes.indiatimes.com/now-ndtv-india-beats-aaj-tak-in-market-share/articleshow/895671.cms |url-status=live |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20200918141137/https://economictimes.indiatimes.com/now-ndtv-india-beats-aaj-tak-in-market-share/articleshow/895671.cms |archive-date=18 September 2020}} The film has been streaming on Netflix and Amazon Prime Video since 30 November 2016.{{Cite web |title=Koi... Mil Gaya (2003) on Netflix |url=https://www.netflixmovies.com/koi-mil-gaya-2003 |url-status=live |archive-url=https://web.archive.org/web/20200814043514/https://www.netflixmovies.com/koi-mil-gaya-2003 |archive-date=14 August 2020 |access-date=9 May 2021 |website=Netflix}}{{Cite web |title=Koi Mil Gaya |url=https://www.primevideo.com/detail/Koi-Mil-Gaya/0TEJVUOJVBKQTXU91D75C5D5NF |url-status=live |archive-url=https://web.archive.org/web/20210511061321/https://www.primevideo.com/detail/Koi-Mil-Gaya/0TEJVUOJVBKQTXU91D75C5D5NF |archive-date=11 May 2021 |access-date=9 May 2021 |website=Amazon Prime Video}}

Koi... Mil Gaya was successful at the box office, due to the audience's sympathy for Hrithik Roshan's character as a man with developmental disability. Trade analysts speculated the film would be an "acid test" for the actor.{{Cite web |last=Pais |first=Arthur J. |date=5 August 2003 |title=Hrithik's still popular |url=https://www.rediff.com/movies/2003/aug/05hrithik.htm |url-status=live |archive-url=https://web.archive.org/web/20170923233416/http://www.rediff.com/movies/2003/aug/05hrithik.htm |archive-date=23 September 2017 |access-date=10 May 2021 |website=Rediff.com}} The film was released on 450 screens across India and grossed {{INRConvert|22.5|m}} on its opening day, the year's second-highest first-day earnings.{{Cite web |title=Top India First Day (2003) |url=https://www.boxofficeindia.com/india-first-day.php?year=2003 |url-status=live |archive-url=https://web.archive.org/web/20201026100142/https://boxofficeindia.com/india-first-day.php?year=2003 |archive-date=26 October 2020 |access-date=10 May 2021 |website=Box Office India}} It grossed {{INRConvert|64.5|m}} by the end of its opening weekend,{{Cite web |title=Top India First Weekend (2003) |url=https://www.boxofficeindia.com/india-first-weekend.php?year=2003 |url-status=live |archive-url=https://web.archive.org/web/20180106063801/https://www.boxofficeindia.com/india-first-weekend.php?year=2003 |archive-date=6 January 2018 |access-date=10 May 2021 |website=Box Office India}} and {{INRConvert|129|m}} after its first week.{{Cite web |title=Top India First Week (2003) |url=https://www.boxofficeindia.com/india-first-week.php?year=2003 |url-status=live |archive-url=https://web.archive.org/web/20180219082155/https://www.boxofficeindia.com/india-first-week.php?year=2003 |archive-date=19 February 2018 |access-date=10 May 2021 |website=Box Office India}} Koi... Mil Gaya earned {{INRConvert|724.9|m}} in India, becoming the highest-grossing Indian film of 2003.{{Cite web |title=Top India Grossers (2003) |url=https://www.boxofficeindia.com/india-total-gross.php?year=2003 |url-status=live |archive-url=https://web.archive.org/web/20190403130359/https://www.boxofficeindia.com/india-total-gross.php?year=2003 |archive-date=3 April 2019 |access-date=10 May 2021 |website=Box Office India}}

Abroad, the film did not attract much of an audience. As reported by Rediff.com, it debuted in 29th place in North America, where it was released on 55 screens, and grossed less than $300,000 after a three-day run.{{Cite web |last=Pais |first=Arthur J. |date=12 August 2003 |title=KMG: Raves in India, rants in USA |url=https://www.rediff.com/movies/2003/aug/12koi.htm |url-status=live |archive-url=https://web.archive.org/web/20160303174606/http://www.rediff.com/movies/2003/aug/12koi.htm |archive-date=3 March 2016 |access-date=10 May 2021 |website=Rediff.com}} Following its first weekend, the film had collected {{INRConvert|32|m}}.{{Cite web |title=Top Overseas First Weekend (2003) |url=https://www.boxofficeindia.com/overseas-first-weekend.php?year=2003 |url-status=live |archive-url=https://web.archive.org/web/20201019111856/https://www.boxofficeindia.com/overseas-first-weekend.php?year=2003 |archive-date=19 October 2020 |access-date=10 May 2021 |website=Box Office India}} It earned {{INRConvert|98.4|m}} after finishing its overseas theatrical run, becoming the fifth-highest-grossing Indian film of the year.{{Cite web |title=Top Overseas Grossers (2003) |url=https://www.boxofficeindia.com/overseas-total-gross.php?year=2003 |url-status=live |archive-url=https://web.archive.org/web/20161223111307/https://www.boxofficeindia.com/overseas-total-gross.php?year=2003 |archive-date=23 December 2016 |access-date=10 May 2021 |website=Box Office India}} Summarizing the film's total gross in India and overseas, the film-trade website Box Office India estimated Koi... Mil Gaya grossed {{INRConvert|823.3|m}}, making it 2003's second-highest-grossing Indian film.{{Cite web |title=Top Worldwide Grossers (2003) |url=http://www.boxofficeindia.com/worldwide-total-gross.php?year=2003 |url-status=live |archive-url=https://web.archive.org/web/20180106121652/http://www.boxofficeindia.com/worldwide-total-gross.php?year=2003 |archive-date=6 January 2018 |access-date=10 May 2021 |website=Box Office India}}{{Cite news |last=Pillai |first=Sreedhar |date=29 December 2003 |title=Top five |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/top-five/article28459979.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210511061322/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/top-five/article28459979.ece |archive-date=11 May 2021}}

{{Rotten Tomatoes prose|score=80|count=10|average=5.4|consensus=|ref=yes |access-date=13 December 2023}} Koi... Mil Gaya opened to a positive critical reception, with most critics applauding the cast's performances (especially that of Hrithik Roshan).{{Cite news |date=21 August 2003 |title=Sympathy wave? |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/sympathy-wave/article28446203.ece |url-status=live |url-access=subscription |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20210503141608/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/sympathy-wave/article28446203.ece |archive-date=3 May 2021}}{{Cite news |date=29 August 2003 |title=Hrithik's new image spells success |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-fridayreview/hrithiks-new-image-spells-success/article28574011.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210503115016/https://www.thehindu.com/todays-paper/tp-features/tp-fridayreview/hrithiks-new-image-spells-success/article28574011.ece |archive-date=3 May 2021}} Rekha and Zinta's performances were panned; several critics found them to be "utterly wasted" serving only as the film's "decorative piece[s]".{{Cite news |last=Palicha |first=Parish C. |date=14 August 2003 |title=Family entertainer |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/family-entertainer/article28445656.ece |url-status=live |url-access=subscription |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20210503114602/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/family-entertainer/article28445656.ece |archive-date=3 May 2021}} In spite of that, Rekha's performance was better received critically.{{Cite news |last=Govind |first=Ranjani |date=3 November 2003 |title=Graceful as ever |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/graceful-as-ever/article28454505.ece |url-status=live |url-access=subscription |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20210503115359/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/graceful-as-ever/article28454505.ece |archive-date=3 May 2021}} Udita Jhunjhunwala of Mid-Day observed, "You walk into Koi... Mil Gaya expecting to find a mysterious alien, what you end up discovering is a child inside you." She praised Roshan for his performance in "his bravest role".{{Cite news |last=Jhunjhunwala |first=Udita |date=8 August 2003 |title=Film review of 'Koi... Mil Gaya' |work=Mid-Day |url=http://web.mid-day.com/entertainment/hindimoviesreview/2003/august/60630.htm |access-date=19 April 2020 |archive-url=https://web.archive.org/web/20040219054625/http://web.mid-day.com/entertainment/hindimoviesreview/2003/august/60630.htm |archive-date=19 February 2004}} Bollywood Hungama noted, "Hrithik Roshan dominates the show and packs in a power-packed performance. The role of a mentally challenged person is no cakewalk, but the actor takes to it like a fish takes to water. He manages to pull off the zero-to-hero routine exceptionally well. As an actor, he scales dizzier heights with this splendid performance."{{Cite web |last=Adarsh |first=Taran |date=8 August 2003 |title=Koi Mil Gaya Movie Review |url=https://www.bollywoodhungama.com/movie/koi-mil-gaya/critic-review/koi-mil-gaya-movie-review/ |url-status=live |archive-url=https://web.archive.org/web/20200423125533/https://www.bollywoodhungama.com/movie/koi-mil-gaya/critic-review/koi-mil-gaya-movie-review/ |archive-date=23 April 2020 |access-date=9 May 2021 |website=Bollywood Hungama}} Rediff.com's R. Swaminathan called the actor "the turbojet that propels the film to the realm of the extraordinary", and believed that the film's screenplay and dialogues gave his character "flesh and blood".{{Cite web |last=Swaminathan |first=R. |date=7 August 2003 |title=Hrithik: paisa vasool! |url=https://www.rediff.com/movies/2003/aug/07koi.htm |url-status=live |archive-url=https://web.archive.org/web/20030809015723/https://www.rediff.com/movies/2003/aug/07koi.htm |archive-date=9 August 2003 |access-date=9 May 2021 |website=Rediff.com}} However, he felt Jadoo's design was "a big letdown", saying that it was "plasticky" and "does not exude life".{{Cite web |last=Swaminathan |first=R. |date=6 August 2003 |title=Sneak preview: Koi... Mil Gaya |url=https://www.rediff.com/movies/2003/aug/06koi1.htm |url-status=live |archive-url=https://web.archive.org/web/20210509091123/https://www.rediff.com/movies/2003/aug/06koi1.htm |archive-date=9 May 2021 |access-date=9 May 2021 |website=Rediff.com}}

Writing for The Afternoon Despatch & Courier, Deepa Gahlot described Koi... Mil Gaya as "a great demo of the Bollywood style of filmmaking", but criticised its scientific inaccuracy.{{Cite news |last=Gahlot |first=Deepa |author-link=Deepa Gahlot |date=8 August 2003 |title=ET In Bollywood |work=The Afternoon Despatch & Courier |url=http://www.cybernoon.com:80/DisplayArticle.asp?section=xtras&subsection=showbuzz&xfile=August2003_filmreview_standard11&child=filmreview |url-status=dead |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20030905022813/http://www.cybernoon.com/DisplayArticle.asp?section=xtras&subsection=showbuzz&xfile=August2003_filmreview_standard11&child=filmreview |archive-date=5 September 2003}} Manjulaa S. Negi of the Hindustan Times was not satisfied by the special effects and compared them to Independence Day (1996).{{Cite news |last=Negi |first=Manjulaa S. |date=9 August 2003 |title=Koi... Mil Gaya |work=Hindustan Times |url=https://widgets.hindustantimes.com/india/koi-mil-gaya/story-6OoraU486cWOy0McMQn9aI.html |url-status=live |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20210507062503/https://widgets.hindustantimes.com/india/koi-mil-gaya/story-6OoraU486cWOy0McMQn9aI.html |archive-date=7 May 2021}} Screen{{'s}} editor Bhawana Somaaya appreciated Hrithik Roshan's performance, finding it to be "very sincere" and "brave"; she also took note of the film's "refreshing" subject.{{Cite news |last=Jhunjhunwala |first=Udita |date=7 August 2003 |title=Sneak preview of 'Koi... Mil Gaya' |work=Mid-Day |url=http://web.mid-day.com/entertainment/movies/2003/august/60497.htm |url-status=dead |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20030808034225/http://web.mid-day.com/entertainment/movies/2003/august/60497.htm |archive-date=8 August 2003}} Sharing a similar view, Dinesh Raheja felt Hrithik Roshan had delivered "a cherish-worthy performance".{{Cite news |last=Raheja |first=Dinesh |author-link=Dinesh Raheja |date=13 August 2003 |title=Hrithik's magic works |work=Mid-Day |url=http://web.mid-day.com:80/columns/dinesh_raheja/2003/august/61000.htm |url-status=dead |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20031011193334/http://web.mid-day.com/columns/dinesh_raheja/2003/august/61000.htm |archive-date=11 October 2003}} Both critics added the child actors, who accompanying Hrithik Roshan's character throughout the film, contributed positively to his performance. Ziya Us Salam was sure Rekha was underdeveloped and Lata Khubchandani, in her review for Sify, questioned why she was cast for the role;{{Cite news |last=Salam |first=Ziya Us |author-link=Ziya Us Salam |date=11 August 2003 |title=Finding a winner all the way |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/finding-a-winner-all-the-way/article28445139.ece |url-status=live |url-access=subscription |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20210505180259/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/finding-a-winner-all-the-way/article28445139.ece |archive-date=5 May 2021}}{{Cite web |last=Khubchandani |first=Lata |date=2003 |title=Hrithik's alien flick is a must-watch |url=http://sify.com/movies/bollywood/review.php?ctid=5&cid=2425&id=13220427 |url-status=dead |archive-url=https://web.archive.org/web/20030912031329/http://sify.com/movies/bollywood/review.php?ctid=5&cid=2425&id=13220427 |archive-date=12 September 2003 |access-date=9 May 2021 |website=Sify}} Khalid Mohamed, who gave the film four stars, presumed that Rekha's role made her "restrained"—an opinion shared by Nahta.{{Cite news |last=Mohamed |first=Khalid |author-link=Khalid Mohamed |date=10 August 2003 |title=Now, that's entertainment |work=Mid-Day |url=http://web.mid-day.com/columns/khalid_mohammed/2003/august/60818.htm |url-status=dead |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20030811192350/http://web.mid-day.com/columns/khalid_mohammed/2003/august/60818.htm |archive-date=11 August 2003}}{{Cite web |last=Nahta |first=Komal |author-link=Komal Nahta |date=25 July 2003 |title=Koi Mil Gaya |url=http://radiosargam.com/movies/moviereviews/k/koimilgaya.htm |url-status=dead |archive-url=https://web.archive.org/web/20031119003252/http://radiosargam.com/movies/moviereviews/k/koimilgaya.htm |archive-date=19 November 2003 |access-date=9 May 2021 |website=Radio Sargam}} Of Zinta's performance, Nahta opined: "Preity Zinta does not have a very significant role in terms of the value she adds although she has a running role. She looks pretty and acts well." Vijay Venkataramanan of Planet Bollywood appreciated Rekha's strong chemistry with Hrithik Roshan.{{Cite web |last=Venkataramanan |first=Vijay |date=2003 |title=Koi Mil Gaya |url=https://planetbollywood.com/displayReview.php?id=041206122131 |url-status=live |archive-url=https://web.archive.org/web/20160805090207/https://planetbollywood.com/displayReview.php?id=041206122131 |archive-date=5 August 2016 |access-date=9 May 2021 |website=Planet Bollywood}}

Chitra Mahesh from The Hindu commended Hrithik Roshan and the cast of the children, while referring to the character Jadoo as "amateurish".{{Cite news |last=Mahesh |first=Chitra |date=15 August 2003 |title="Koi Mil Gaya" |work=The Hindu |url=http://www.hindu.com/thehindu/fr/2003/08/15/stories/2003081501450200.htm |url-status=dead |url-access=subscription |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20050122154235/http://www.hindu.com/thehindu/fr/2003/08/15/stories/2003081501450200.htm |archive-date=22 January 2005}} In his five-star review published by B4U, Parag Chandrabala Maniar lauded the efforts of Rakesh Roshan "to provide pure and clean entertainment" and Kolbe's and Mumma's special effects. He said of Hrithik Roshan, "[He] proves his versatility as an actor. At times he moves you and at others he makes you laugh. Here's is (sic) definitely an actor to reckon with. The number of flops notwithstanding, Hrithik Roshan is here to stay."{{Cite web |last=Maniar |first=Parag Chandrabala |date=2003 |title=Koi Mil Gaya: Space Ventura! |url=http://www.b4utv.com/movies/review/koi.asp?ReviewID=koi08072003 |url-status=dead |archive-url=https://web.archive.org/web/20030815104713/http://www.b4utv.com/movies/review/koi.asp?ReviewID=koi08072003 |archive-date=15 August 2003 |access-date=9 May 2021 |website=B4U}} Meenakshi Rao of The Pioneer complimented his acting style, considering him to be "endearing, as endearing as a child of his mental age".{{Cite news |last=Rao |first=Meenakshi |date=2003 |title=Indian ET has its charms |work=The Pioneer |url=http://www.dailypioneer.com/indexn12.asp?main_variable=FILMS&file_name=film1.txt&counter_img=1 |url-status=dead |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20030810040446/http://www.dailypioneer.com/indexn12.asp?main_variable=FILMS&file_name=film1.txt&counter_img=1 |archive-date=10 August 2003}} The Times of India{{'s}} Omar Qureshi elaborated, "Hrithik blows away all doubts, theories, criticisms and disbelief with an extraordinarily touching performance of a mentally challenged boy in a rough man's world. He surprises you with his reserves of pathos, his gamut of emotion and his transition from weak boy to strong man. Here is a sterling act, worthy of all awards this year—thus far. He is simply incredible, even in his voice modulations, his sloppy walk and his lopsided smile."{{Cite news |last=Qureshi |first=Omar |date=7 August 2003 |title=Hrithik does jadoo in Koi Mil Gaya |work=The Times of India |agency=Times News Network |url=https://timesofindia.indiatimes.com/entertainment/hindi/bollywood/news/Hrithik-does-jadoo-in-Koi-Mil-Gaya/articleshow/119141.cms |url-status=live |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20200920061636/https://timesofindia.indiatimes.com/entertainment/hindi/bollywood/news/Hrithik-does-jadoo-in-Koi-Mil-Gaya/articleshow/119141.cms |archive-date=20 September 2020}} An Indo-Asian News Service critic wrote that the pairing of Hrithik Roshan and Preity Zinta took "the couple conventions of Hindi cinema far beyond the escapades of typical Hindi cinema".{{Cite news |date=7 August 2003 |title=KMG: Love comes a calling |work=The Times of India |agency=Indo-Asian News Service |url=http://timesofindia.indiatimes.com/articleshow/136048.cms |url-status=dead |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20031228223535/http://timesofindia.indiatimes.com/articleshow/136048.cms |archive-date=28 December 2003}}

Overseas critics focused their attention on Hrithik Roshan's performance and the film's themes, while also pointing out its many similarities to American SF films (most notably E.T.). Ed Halter of The Village Voice predicted that the film's elements, including its "nonstop plagiarism from classics like E.T., Star Wars, and Close Encounters of the Third Kind", might be embraced by foreign nerds.{{Cite news |last=Halter |first=Ed |author-link=Ed Halter |date=13–19 August 2003 |title=Mothership Masala: Close Encounters of the Bollywood Kind |work=The Village Voice |url=http://www.villagevoice.com/issues/0333/halter.php |url-status=dead |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20030820130431/http://www.villagevoice.com/issues/0333/halter.php |archive-date=20 August 2003}} Grady Hendrix of Film Comment commented that the film was an "embarrassment of riches", summarising, "... it's mockable, it's silly, it's cloaked in a cloying miasma of cute, but its off-handed facility with pop-cinema conventions, spiced up with some jarring stylistic disconnects, delivers the most mind-bending entertainment experience of the season. This is commercial moviemaking taken to its logical, mondo mercantilist conclusion."{{Cite news |last=Hendrix |first=Gary |author-link=Gary Hendrix |date=2003 |title=Koi... Mil Gaya (I Found Someone, 2003) |work=Film Comment |url=http://www.filmlinc.com/fcm/online/reviewbol.htm |url-status=dead |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20031006234043/http://www.filmlinc.com/fcm/online/reviewbol.htm |archive-date=6 October 2003}} M. J. Simpson expressed approval of the entire cast, especially Hrithik Roshan, whom he regarded as the film's "oddest aspect".{{Cite web |last=Simpson |first=M. J. |author-link=M. J. Simpson |date=14 June 2006 |title=Koi... Mil Gaya |url=http://mjsimpson-films.blogspot.com/2013/11/koi-mil-gaya.html |url-status=live |archive-url=https://web.archive.org/web/20210506134318/http://mjsimpson-films.blogspot.com/2013/11/koi-mil-gaya.html |archive-date=6 May 2021 |access-date=9 May 2021 |website=M. J. Simpson}} Calling it "bright, loud and relentless fun", Jürgen Fauth gave the film three-and-a-half-out-of-five stars and reviewed its comedic, romantic, science-fictional, musical, action, and melodramatic elements positively.{{Cite web |last=Fauth |first=Jürgen |author-link=Jürgen Fauth |date=2003 |title="E.T." Meets "The Sound of Music"... in Hindi |url=http://worldfilm.about.com/cs/bollywood/fr/koimilgaya.htm |url-status=dead |archive-url=https://web.archive.org/web/20031210024420/http://worldfilm.about.com/cs/bollywood/fr/koimilgaya.htm |archive-date=10 December 2003 |access-date=9 May 2021 |website=World/Independent Film}} Empire magazine hailed it as the "most novel Bollywood movie of the year".{{Cite news |last=Ahmed |first=Omar |date=21 August 2003 |title=Koi... Mil Gaya Review |work=Empire |url=https://www.empireonline.com/movies/reviews/koi-mil-gaya-review/ |url-status=live |access-date=9 May 2021 |archive-url=https://archive.today/20200803020020/https://www.empireonline.com/movies/reviews/koi-mil-gaya-review/ |archive-date=3 August 2020}} The BBC's Manish Gajjar described Hrithik Roshan's role as a "mentally-retarded-child-[turned]-superman-hero".{{Cite web |last=Gajjar |first=Manish |date=August 2003 |title=Koi Mil Gaya |url=http://www.bbc.co.uk/shropshire/films/bollywood/2003/08/koi_mil_gaya.shtml |url-status=dead |archive-url=https://web.archive.org/web/20031003162004/http://www.bbc.co.uk/shropshire/films/bollywood/2003/08/koi_mil_gaya.shtml |archive-date=3 October 2003 |access-date=9 May 2021 |website=BBC}} Derek Elley praised him for avoiding his typecasting as a romantic hero,{{Cite news |last=Elley |first=Derek |author-link=Derek Elley |date=25 August 2003 |title=Koi... Mil Gaya |work=Variety |url=https://variety.com/2003/film/reviews/koi-mil-gaya-1200539782/ |url-status=live |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20180515091850/https://variety.com/2003/film/reviews/koi-mil-gaya-1200539782/ |archive-date=15 May 2018}} while David Parkinson of Radio Times thought that the film served as "slick, sentimental entertainment".{{Cite news |last=Parkinson |first=David |date=August 2003 |title=Koi... Mil Gaya |work=Radio Times |url=https://www.radiotimes.com/film/cpgcd/koi-mil-gaya/ |url-status=live |access-date=9 May 2021 |archive-url=https://web.archive.org/web/20200919120533/https://www.radiotimes.com/film/cpgcd/koi-mil-gaya/ |archive-date=19 September 2020}} Writing for TV Guide, Maitland McDonagh singled out Jadoo's expression in the scene where he is lost in a forest for praise.{{Cite news |last=McDonagh |first=Maitland |date=August 2003 |title=Koi... Mil Gaya |work=TV Guide |url=https://www.tvguide.com/movies/koi-mil-gaya/review/136980/ |url-status=live |access-date=9 May 2021 |archive-url=https://archive.today/20200919133419/https://www.tvguide.com/movies/koi-mil-gaya/review/136980/ |archive-date=19 September 2020}}

{{Main|List of accolades received by Koi... Mil Gaya}}

Koi... Mil Gaya won three awards at the 51st National Film Awards, including National Film Award for Best Film on Other Social Issues tied with Prakash Jha's crime film Gangaajal.{{Cite news |date=3 February 2005 |title=Kalam steals the show at film awards fete |work=The Hindu |location=New Delhi, India |url=https://www.thehindu.com/todays-paper/tp-national/kalam-steals-the-show-at-film-awards-fete/article27310422.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210511061322/https://www.thehindu.com/todays-paper/tp-national/kalam-steals-the-show-at-film-awards-fete/article27310422.ece |archive-date=11 May 2021}} At the 49th Filmfare Awards, the film was nominated for eleven categories including Best Actress (Zinta), Best Supporting Actress (Rekha), Best Performance in a Comic Role (Johnny Lever), and Best Music Director (Rajesh Roshan).{{Cite web |title=Filmfare Nominees and Winners |url=https://sites.google.com/site/deep750/FilmfareAwards.pdf?attredirects=0 |url-status=live |website=Filmfare |format=PDF |pages=116–119 |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20151019034032/https://sites.google.com/site/deep750/FilmfareAwards.pdf?attredirects=0 |archive-date=19 October 2015}} It went on to win five trophies including Best Film, Best Director for Rakesh Roshan, and Best Actor and Best Actor (Critics) for Hrithik Roshan. At the sixth Bollywood Movie Awards, Hrithik Roshan received Best Actor and Best Actor (Critics), while Rekha was acknowledged as the year's Best Supporting Actress.{{Cite web |title=Winners of Bollywood Movie Awards |url=http://www.bollywoodawards.com/winba9.php |url-status=dead |archive-url=https://web.archive.org/web/20131102124901/http://www.bollywoodawards.com/winba9.php |archive-date=2 November 2013 |access-date=8 May 2021 |website=Bollywood Movie Awards}} The film won five of eleven nominations at the fifth International Indian Film Academy Awards, including Best Director (Rakesh Roshan) and Best Actor (Hrithik Roshan).{{Cite news |last=Kamath |first=Sudhish |author-link=Sudhish Kamath |date=24 May 2004 |title=Kal Ho Na Ho bags 11 awards |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-national/kal-ho-na-ho-bags-11-awards/article27616386.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210503121224/https://www.thehindu.com/todays-paper/tp-national/kal-ho-na-ho-bags-11-awards/article27616386.ece |archive-date=3 May 2021}} It also earned five Screen Awards,{{Cite web |last=Jha |first=Subhash K. |date=18 January 2004 |title=Screen Awards: Shocks & surprises |url=http://www.sify.com/movies/screen-awards-shocks--surprises-news-bollywood-kkfvNPjehfhsi.html |url-status=dead |website=Sify |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20180107105835/http://www.sify.com/movies/screen-awards-shocks-surprises-news-bollywood-kkfvNPjehfhsi.html |archive-date=7 January 2018}} five Zee Cine Awards,{{Cite news |last=Pisharoty |first=Sangeeta Barooah |date=1 March 2004 |title=A to Zee... Awards galore |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/a-to-zee-awards-galore/article28201351.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210503120857/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/a-to-zee-awards-galore/article28201351.ece |archive-date=3 May 2021}} four Producers Guild Film Awards,{{Cite web |title=1st Apsara Producers Guild Awards Winners |url=http://apsaraawards.org/1st_apsara_awards_winners.html |url-status=live |website=Producers Guild Film Awards |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20180111155807/http://apsaraawards.org/1st_apsara_awards_winners.html |archive-date=11 January 2018}} and two Stardust Awards.{{Cite web |date=4 February 2004 |title=Shahid, Amrita bag 'Stardust' awards |url=https://www.sify.com/movies/shahid-amrita-bag-stardust-awards-news-bollywood-kkfvNLfhfhesi.html |url-status=dead |archive-url=https://web.archive.org/web/20180129100735/https://www.sify.com/movies/shahid-amrita-bag-stardust-awards-news-bollywood-kkfvNLfhfhesi.html |archive-date=29 January 2018 |access-date=10 May 2021 |website=Sify}}

Koi... Mil Gaya, often abbreviated as KMG,{{Cite news |last=Udasi |first=Harshikaa |date=13 September 2013 |title=Kid Krrish to the rescue |work=The Hindu |url=https://www.thehindu.com/features/cinema/kid-krrish-to-the-rescue/article4614038.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20130801005902/http://www.thehindu.com/features/cinema/kid-krrish-to-the-rescue/article4614038.ece |archive-date=1 August 2013}} has been widely regarded as the first Indian science fiction film with alien characters in it, although this was disputed by several film experts. In The Liverpool Companion to World Science Fiction Film (2014), professors Jessica Langer and Dominic Alessio wrote that the Tamil-language film Kalai Arasi (1963) should be given the title.{{Cite book |last1=Langer |first1=Jessica |title=The Liverpool Companion to World Science Fiction Film |last2=Alessio |first2=Dominic |date=1 September 2014 |publisher=Liverpool University Press |isbn=978-1-78138-038-3 |editor-last=Fritzsche |editor-first=Sonya |chapter=Indian Science Fiction Cinema: An Overview |chapter-url=https://books.google.com/books?id=Wg_RCwAAQBAJ&q=kalaiarasi+queen+of+arts&pg=PA56 |access-date=17 November 2021 |archive-date=23 December 2023 |archive-url=https://web.archive.org/web/20231223071600/https://books.google.com/books?id=Wg_RCwAAQBAJ&q=kalaiarasi+queen+of+arts&pg=PA56 |url-status=live }}^:56 Writing for The New York Times, the critic and author Anupama Chopra stated that Koi... Mil Gaya was "Hindi cinema's first major science fiction film."{{Cite news |last=Chopra |first=Anupama |author-link=Anupama Chopra |date=11 June 2006 |title=In 'Krrish,' Bollywood Gets a Superhero of Its Own |work=The New York Times |url=https://www.nytimes.com/2006/06/11/movies/11chopr.html |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20060615213556/https://www.nytimes.com/2006/06/11/movies/11chopr.html |archive-date=15 June 2006}} The BBC reported that the film "is certainly a milestone in the reformation of commercial Indian cinema as a whole",{{Cite web |date=2003 |title=The next big hurdle... |url=http://www.bbc.co.uk/leeds/blast/kmg_review.shtml |url-status=live |archive-url=https://web.archive.org/web/20030826015252/http://www.bbc.co.uk/leeds/blast/kmg_review.shtml |archive-date=26 August 2003 |access-date=10 May 2021 |website=BBC}} and the American graphic artist Aaron Marcus, in his 2014 book Design, User Experience, and Usability: Health, Learning, Playing, Cultural, and Cross-Cultural User Experience called it the most popular Bollywood science fiction film.{{Cite book |last=Marcus |first=Aaron |url=https://books.google.com/books?id=zJW6BQAAQBAJ&dq=aaron+marcus+koi+mil+gaya&pg=PA75 |title=Design, User Experience, and Usability: Health, Learning, Playing, Cultural, and Cross-Cultural User Experience |date=11 June 2014 |publisher=Springer Nature |isbn=978-3-319-07638-6 |author-link=Aaron Marcus |access-date=19 March 2023 |archive-date=10 October 2023 |archive-url=https://web.archive.org/web/20231010195740/https://books.google.com/books?id=zJW6BQAAQBAJ&dq=aaron+marcus+koi+mil+gaya&pg=PA75 |url-status=live }}^:75 In 2016, Mint featured Koi... Mil Gaya on its lists of "Children's Day: 10 Memorable Bollywood Films"{{Cite news |last=Jha |first=Lata |date=14 November 2016 |title=Children's Day: 10 memorable Bollywood films |work=Mint |url=https://www.livemint.com/Consumer/djhr8pnc7PcV5dguS98WXJ/Ten-memorable-Bollywood-childrens-films.html |url-status=live |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20181117193232/https://www.livemint.com/Consumer/djhr8pnc7PcV5dguS98WXJ/Ten-memorable-Bollywood-childrens-films.html |archive-date=17 November 2018}} and "Ten Bollywood films Dealing with Disability".{{Cite news |last=Jha |first=Lata |date=8 March 2016 |title=Ten Bollywood films dealing with disability |work=Mint |url=https://www.livemint.com/Leisure/hB0s0ADXk4HQLCYa8RZFjK/Ten-Bollywood-films-dealing-with-disability.html |url-status=live |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210510094100/https://www.livemint.com/Leisure/hB0s0ADXk4HQLCYa8RZFjK/Ten-Bollywood-films-dealing-with-disability.html |archive-date=10 May 2021}}

After making his debut in Kaho Naa... Pyaar Hai (2000), Hrithik Roshan starred in a series of romantic films, most of which under performed financially including Yaadein (2001), Aap Mujhe Achche Lagne Lage (2002), and Na Tum Jaano Na Hum (2002).{{Cite news |last1=Raval |first1=Sheela |last2=Bamzai |first2=Kaveree |date=27 May 2002 |title=Is Hrithik Roshan a one-trick pony? |work=India Today |url=https://www.indiatoday.in/magazine/society-the-arts/films/story/20020527-is-hrithik-roshan-a-one-trick-pony-795167-2002-05-27 |url-status=live |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210318074259/https://www.indiatoday.in/magazine/society-the-arts/films/story/20020527-is-hrithik-roshan-a-one-trick-pony-795167-2002-05-27 |archive-date=18 March 2021}} Trade analysts believed that his career was ended by these failures.{{Cite news |date=20 January 2003 |title=Second coming |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/second-coming/article28397040.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210511061323/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/second-coming/article28397040.ece |archive-date=11 May 2021}}{{Cite news |last=Chowdhury |first=Souvik |date=1 July 2003 |title=Honesty, Hrithik style |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/honesty-hrithik-style/article28441213.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210503141542/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/honesty-hrithik-style/article28441213.ece |archive-date=3 May 2021}} The release of Koi... Mil Gaya, which Hrithik Roshan wanted to revive his career, changed analysts' perspectives of the actor and suggested that the film resurrected his position in the industry.{{Cite web |last=Verma |first=Sukanya |date=15 December 2003 |title=Bollywood's Top 5, 2003: Hrithik Roshan |url=https://in.rediff.com/movies/2003/dec/15sld10.htm |url-status=live |archive-url=https://web.archive.org/web/20210511061359/https://in.rediff.com/movies/2003/dec/15sld10.htm |archive-date=11 May 2021 |access-date=10 May 2021 |website=Rediff.com}} While attending its premiere, Nahta told Rediff.com that it was "very important for him. Hrithik is not 'out' of the industry but his position is shaky. So, if the audience likes the film, it is good for him." In 2010, Filmfare magazine included his performance on their list of "80 Iconic Performances" of Hindi cinema, writing, "It's incredible how the actor manages to diminish his size, unstylise his look, wear bug-eyed glasses and talk funny ... Watch him laugh, cry or bond with his remote controlled alien friend and note his nuanced turn."{{Cite news |date=5 June 2010 |title=Filmfare – 80 Iconic Performances 5/10 |work=Filmfare |url=http://www.filmfare.com/articles/80-iconic-performances-510-955.html |url-status=dead |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20120325055806/http://www.filmfare.com/articles/80-iconic-performances-510-955.html |archive-date=25 March 2012}} He and Zinta collaborated again in the war drama Lakshya (2004), which failed at the box office although he received positive feedback.{{Cite news |date=31 December 2004 |title=Mixed bag of hits and duds |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-fridayreview/mixed-bag-of-hits-and-duds/article28578212.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210511061326/https://www.thehindu.com/todays-paper/tp-features/tp-fridayreview/mixed-bag-of-hits-and-duds/article28578212.ece |archive-date=11 May 2021}}{{Cite web |last=Pai |first=Rajeev |date=18 June 2004 |title=Watch Lakshya. You won't be disappointed |url=https://www.rediff.com/movies/2004/jun/18lakshya.htm |url-status=live |archive-url=https://web.archive.org/web/20201204150439/https://www.rediff.com/movies/2004/jun/18lakshya.htm |archive-date=4 December 2020 |access-date=10 May 2021 |website=Rediff.com}} In 2005, Zinta chose Koi... Mil Gaya as one of her favourite films.{{Cite news |date=February 2005 |title=Top Ten: Preity Zinta |work=Filmfare |url=http://www.filmfare.com/articleshow/msid-1041979,curpg-2.cms |url-status=dead |access-date=18 May 2021 |archive-url=https://web.archive.org/web/20050329041811/http://www.filmfare.com/articleshow/msid-1041979,curpg-2.cms |archive-date=29 March 2005}}

The film was remade into a soap opera in Indonesia under the title {{ill|Si Yoyo|id|italic=yes}} (2003–2007) and in Telugu as Orey Pandu (2005).{{Cite web |last=Febriyatko |first=Angga |date=9 October 2010 |title=Laris manis sinetron |trans-title=The success of soap operas |url=https://news.detik.com/opini/d-1459911/laris-manis-sinetron |url-status=live |archive-url=https://web.archive.org/web/20200925091300/https://news.detik.com/opini/d-1459911/laris-manis-sinetron |archive-date=25 September 2020 |access-date=10 May 2021 |website=Detik.com |location=Jakarta, Indonesia |language=id}}{{Cite web |last=Anuradha |first=B. |title=Sachin does a Hrithik Roshan! |url=https://www.rediff.com/movies/review/pandu/20050211.htm |url-status=live |archive-url=https://web.archive.org/web/20230117091544/https://www.rediff.com/movies/review/pandu/20050211.htm |archive-date=2023-01-17 |access-date=2023-01-24 |website=Rediff.com}} Following the film's success, Jadoo became popular with children. Nickelodeon India aired a spin-off television series based on the character, titled J Bole Toh Jadoo, in 2004.{{Cite news |last=Pisharoty |first=Sangeeta Barooah |date=9 November 2004 |title=Crowning the kid king |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/crowning-the-kid-king/article28352832.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210503121841/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/crowning-the-kid-king/article28352832.ece |archive-date=3 May 2021}} In 2020, after the United States Department of Defense published footage of an unidentified flying object, internet memes relating to the film went viral; most of them use the scene where Rohit summons aliens by his father's computer.{{Cite news |date=29 April 2020 |title=Pentagon officially releases UFO footage, Bollywood fans call Hrithik Roshan-Rakesh Roshan 'visionaries' for making 'Koi... Mil Gaya' |work=The Times of India |agency=Times News Network |url=https://timesofindia.indiatimes.com/entertainment/hindi/bollywood/news/pentagon-officially-releases-ufo-footage-bollywood-fans-call-hrithik-roshan-rakesh-roshan-visionaries-for-making-koi-mil-gaya/articleshow/75428424.cms |url-status=live |access-date=11 May 2021 |archive-url=https://web.archive.org/web/20201218003243/https://timesofindia.indiatimes.com/entertainment/hindi/bollywood/news/pentagon-officially-releases-ufo-footage-bollywood-fans-call-hrithik-roshan-rakesh-roshan-visionaries-for-making-koi-mil-gaya/articleshow/75428424.cms |archive-date=18 December 2020}}

{{Main|Krrish (franchise)}}

Koi... Mil Gaya is the first installment in the Krrish franchise.{{Cite news |last=Kumar |first=Anuj |date=3 November 2013 |title=A sci-fi double dose this Diwali |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-national/tp-newdelhi/a-scifi-double-dose-this-diwali/article5308840.ece |url-status=live |url-access=subscription |access-date=11 May 2021 |archive-url=https://web.archive.org/web/20131117202548/http://www.thehindu.com/todays-paper/tp-national/tp-newdelhi/a-scifi-double-dose-this-diwali/article5308840.ece |archive-date=17 November 2013}} In November 2004, in an interview with Subhash K. Jha of Rediff.com, Hrithik Roshan announced that his father, Rakesh Roshan, had begun the production of a sequel to Koi... Mil Gaya, based on a screenplay which was written in eight or nine months.{{Cite news |last=Chhiber |first=Mini-Anthikad |date=15 November 2004 |title=One for all |work=The Hindu |location=Hyderabad, India |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/one-for-all/article28353625.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210511061326/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/one-for-all/article28353625.ece |archive-date=11 May 2021}}{{Cite web |last=Jha |first=Subhash K. |date=9 November 2004 |title=Hrithik announces sequel! |url=https://www.rediff.com/movies/2004/nov/09hrithik.htm |url-status=live |archive-url=https://web.archive.org/web/20081118114830/http://www.rediff.com/movies/2004/nov/09hrithik.htm |archive-date=18 November 2008 |access-date=10 May 2021 |website=Rediff.com}} A superhero film titled Krrish, Hrithik Roshan would play a dual role, reprising his part as Rohit from the original film and playing the character's eponymous son. While Rekha also reprised her role in the sequel, Zinta's position as the female lead was given to Priyanka Chopra.{{Cite news |last=Salam |first=Ziya Us |date=24 June 2006 |title='Krrish' a technological marvel |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-national/tp-andhrapradesh/krrish-a-technological-marvel/article3123715.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210511061326/https://www.thehindu.com/todays-paper/tp-national/tp-andhrapradesh/krrish-a-technological-marvel/article3123715.ece |archive-date=11 May 2021}} Produced on a budget of {{INRConvert|500|m}},{{Cite news |last=K. |first=Bhumika |date=24 June 2006 |title=Man, that's super! |work=The Hindu |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/man-thats-super/article3195006.ece |url-status=live |url-access=subscription |access-date=10 May 2021 |archive-url=https://web.archive.org/web/20210511061327/https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/man-thats-super/article3195006.ece |archive-date=11 May 2021}} principal photography started in March 2005 and finished in January 2006.{{Cite web |date=3 January 2006 |title=Krrish promos from January 15 |url=https://www.bollywoodhungama.com/news/bollywood/krrish-promos-from-january-15/ |url-status=live |archive-url=https://web.archive.org/web/20210511061342/https://www.bollywoodhungama.com/news/bollywood/krrish-promos-from-january-15/ |archive-date=11 May 2021 |access-date=10 May 2021 |website=Bollywood Hungama |publisher=IndiaFM News Bureau}} Krrish opened on 23 June 2006 to mixed reviews,{{Cite web |last=Ashraf |first=Syed Firdaus |date=12 June 2006 |title='We are no less than Hollywood' |url=https://www.rediff.com/movies/2006/jun/12rakesh.htm |url-status=live |archive-url=https://web.archive.org/web/20160306024807/http://www.rediff.com/movies/2006/jun/12rakesh.htm |archive-date=6 March 2016 |access-date=10 May 2021 |website=Rediff.com}} with critics were disappointed by the replacement of Zinta. However, the film was a commercial success and became the second-highest-grossing Indian film that year, earning more than {{INRConvert|1|b}}.{{Cite web |title=Top Worldwide Grossers (2006) |url=https://www.boxofficeindia.com/worldwide-total-gross.php?year=2006 |url-status=live |archive-url=https://web.archive.org/web/20161223001514/https://www.boxofficeindia.com/worldwide-total-gross.php?year=2006 |archive-date=23 December 2016 |access-date=10 May 2021 |website=Box Office India}}

A second superhero sequel, Krrish 3, was announced in December 2006.{{Cite web |date=20 December 2006 |title=Rakesh Roshan plans sequel to Krrish |url=http://www.indiafm.com/news/2006/12/20/8486/index.html |url-status=dead |archive-url=https://web.archive.org/web/20070120013808/http://www.indiafm.com/news/2006/12/20/8486/index.html |archive-date=20 January 2007 |access-date=11 May 2021 |website=Bollywood Hungama |publisher=IndiaFM News Bureau}} Hrithik Roshan and Chopra reprise their roles, while Vivek Oberoi and Kangana Ranaut play the antagonists. The film was originally scheduled to be released as a 3D film, but the idea was scrapped.{{Cite news |last=Iyer |first=Meena |date=21 May 2012 |title=Krrish-3 not in 3D |work=The Times of India |url=https://timesofindia.indiatimes.com/entertainment/hindi/bollywood/news/krrish-3-not-in-3d/articleshow/13315234.cms |url-status=live |access-date=11 May 2021 |archive-url=https://web.archive.org/web/20210511061328/https://timesofindia.indiatimes.com/entertainment/hindi/bollywood/news/krrish-3-not-in-3d/articleshow/13315234.cms |archive-date=11 May 2021}} Although Rakesh Roshan never officially confirmed its budget, reports from the media estimated it to be above {{INRConvert|1|b}}.{{Cite news |date=2 November 2013 |title=Krrish 3 gets a grand opening, collects Rs 25 crore on first day |work=Hindustan Times |agency=Indo-Asian News Service |url=https://www.hindustantimes.com/bollywood/krrish-3-gets-a-grand-opening-collects-rs-25-crore-on-first-day/story-YLJenTAiTWGAAUwP2OHDLK.html |url-status=live |access-date=11 May 2021 |archive-url=https://web.archive.org/web/20210511062901/https://www.hindustantimes.com/bollywood/krrish-3-gets-a-grand-opening-collects-rs-25-crore-on-first-day/story-YLJenTAiTWGAAUwP2OHDLK.html |archive-date=11 May 2021}} Filming took place between December 2011 and June 2012.{{Cite news |last=Lalwani |first=Vickey |date=28 November 2011 |title=No stunts for Hrithik Roshan, advised doctor |work=The Times of India |url=https://timesofindia.indiatimes.com/entertainment/hindi/bollywood/news/No-stunts-for-Hrithik-Roshan-advised-doctor/articleshow/10901759.cms |url-status=live |access-date=11 May 2021 |archive-url=https://web.archive.org/web/20130815233412/http://articles.timesofindia.indiatimes.com/2011-11-28/news-interviews/30449592_1_krrish-stunts-hrithik-roshan |archive-date=15 August 2013}}{{Cite web |last=Jha |first=Subhash K. |date=16 November 2013 |title="I had finished shooting Krrish 3 in June 2012" – Rakesh Roshan |url=http://www.bollywoodhungama.com/movies/features/type/view/id/5767 |url-status=dead |archive-url=https://web.archive.org/web/20131118195615/http://www.bollywoodhungama.com/movies/features/type/view/id/5767 |archive-date=18 November 2013 |access-date=11 May 2021 |website=Bollywood Hungama}} Krrish 3 premiered on 4 November 2013 and was declared a commercial success, emerging as the fourth-highest-grossing Indian film of the year.{{Cite news |date=27 June 2013 |title=Krrish 3 on November 4 |work=The Hindu |agency=Indo-Asian News Service |url=https://www.thehindu.com/todays-paper/tp-features/tp-metroplus/krrish-3-on-november-4/article4854881.ece |url-status=live |url-access=subscription |access-date=11 May 2021 |archive-url=https://web.archive.org/web/20140831054627/http://www.thehindu.com/todays-paper/tp-features/tp-metroplus/krrish-3-on-november-4/article4854881.ece |archive-date=31 August 2014}}{{Cite web |title=Top Worldwide Grossers (2013) |url=https://www.boxofficeindia.com/worldwide-total-gross.php?year=2013 |url-status=live |archive-url=https://web.archive.org/web/20161222230911/https://www.boxofficeindia.com/worldwide-total-gross.php?year=2013 |archive-date=22 December 2016 |access-date=11 May 2021 |website=Box Office India}} Critics panned its lack of originality, although Hrithik Roshan's performance garnered praise.{{Cite news |last=Uniyal |first=Parmita |date=1 November 2013 |title=Movie review: Krrish 3 entertains, but lacks originality |work=Hindustan Times |url=http://www.hindustantimes.com/bollywood/movie-review-krrish-3-entertains-but-lacks-originality/story-IXdtmKJEbxrDuC2edbHMAK.html |url-status=live |access-date=11 May 2021 |archive-url=https://web.archive.org/web/20170510113057/http://www.hindustantimes.com/bollywood/movie-review-krrish-3-entertains-but-lacks-originality/story-IXdtmKJEbxrDuC2edbHMAK.html |archive-date=10 May 2017}} {{As of|July 2021}}, the fourth successor Krrish 4 was to be released at Christmas 2020 but was postponed because of the COVID-19 pandemic in India.{{Cite news |date=23 May 2020 |title=Krrish 4: Everything we know about this Hrithik Roshan film |work=The Indian Express |location=New Delhi, India |url=https://indianexpress.com/article/entertainment/bollywood/krrish-4-hrithik-rakesh-roshan-jaadu-alien-everything-we-know-cast-story-6422074/ |url-status=live |access-date=11 May 2021 |archive-url=https://web.archive.org/web/20210508212050/https://indianexpress.com/article/entertainment/bollywood/krrish-4-hrithik-rakesh-roshan-jaadu-alien-everything-we-know-cast-story-6422074/ |archive-date=8 May 2021}}

• Science fiction films in India
• E.T. the Extra-Terrestrial, a 1982 science fiction by Steven Spielberg with a similar premise
• The Alien (unproduced film), a 1960s film by Indian filmmaker Satyajit Ray based on his short story "Bankubabur Bandhu", often claimed to be a basis for E.T. and Koi... Mil Gaya{{Cite web |title=Bengal |url=https://sf-encyclopedia.com/entry/bengal |access-date= |website=The Encyclopedia of Science Fiction}}

{{notelist}}

{{reflist}}

• {{IMDb title}}
• {{Mojo title}}
• {{Rotten Tomatoes}}
• {{Official website|https://web.archive.org/web/20030517060402/http://www.koimilgayathefilm.com/}}
• [https://web.archive.org/web/20030805063202/http://filmfare.indiatimes.com/clips/movies/koimilgaya/index.htm Koi... Mil Gaya] at Indiatimes.com

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|title=Awards for Koi... Mil Gaya

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Category:2000s Hindi-language films

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