Gurmmeet Singh is a director who predominantly works for Bollywood. He is known for movies like 'Warning,' 'Sharafat Gayi Tel Lene,' 'What the Fish,' and 'Mubarakan' where he worked independently as a director, screenplay and dialogue writer. He stepped into filmmaking business as an assistant director for the movie ‘Don’ (2006) where he worked as a second assistant director.

Don (2006) was a movie starring Shah Rukh Khan which was based on the movie Don (1979) written by Salim Javed. In the first version, Amitabh Bachchan narrated the character of Don. Since then, this formula has been kept repeating in Bollywood. Shah Rukh’s starrer Don was directed by Farhan Akhtar. Gurmmeet Singh was the second-unit director and first assistant director of the movie Don.

He made his debut as an editor for a movie 'Chai Pani Etc.' (2004) where he worked behind the camera. In the year 2007, he was the first assistant director for the movie 'Gandhi, My Father' which was directed by Feroz Abbas Khan. In the year 2013, he was the director for two movies 'Warning' and 'What The Fish.' 'What The Fish' was produced by Viacom 18 Motion Pictures, and it was a comedy film starring Dimple Kapadia and directed by Gurmeet Singh. The film's story was written by Shashank Ghosh, and its screenplay was by Tejpal Singh & Gurmeet Singh.

The film's dialogues were written by Tejpal Singh. In the same year 2013, a 3-D thriller movie 'Warning' was released. The movie's director was Gurmmeet Singh, and it was produced by Anubhav Sinha. This film features Santosh Barmola, Suzana Rodrigues, and Manjari Fadnis as main characters. The film was a carbon copy of a German psychological horror movie 'Open Water 2: Adrift' that released in 2006.

In the year 2015, Gurmmeet Singh directed the movie 'Sharafat Gayi Tel Lene' which was produced by Devinder Jain and Akhilesh Jain. The film cast includes Zayed Khan, Rannvijay Singh, and Tena Desae in lead roles. However, in2015, Gurmmeet Singh wrote screenplay and dialogues for the movie 'Mubarakan' which stars Arjun Kapoor in a dual role. The film has Anil Kapoor, Ileana D'Cruz, and Athiya Shetty in lead roles.

The film's direction is by Anees Bazmee. The producers for the movie are Sony Pictures Networks Productions, Murad Khetani, and Ashwin Varde. The film was a super duper hit at the box office, and the story was the real USP for the success of the movie.