His first film appearance was in Rang De Basanti, as one of the students auditioning for a documentary role.

[3] In 2011, he worked as a casting director in The Dirty Picture and No One Killed Jessica.

[8] Banerjee acted in short films Fuddu Boys and Agli Baar in 2015.

[4][9] He worked as a casting director in Dear Dad, Do Lafzon Ki Kahani, Rock On 2 and You Are My Sunday in 2016.

[4][10] He worked as a casting director in Ok Jaanu, Toilet: Ek Prem Katha, Secret Superstar, and Ajji in 2017.

[15] For this film, he was nominated for Zee Cine Award for Best Actor in a Comic Role in 2019.

[17][18][19] Besides films, he also acted in web series like TVF Pitchers in 2015, Mirzapur in 2018,[20] and Typewriter in 2019 where he played a key role as 'Fakeer'.