He is known for his character 'Tito' in the TV serial Shaka Laka Boom Boom and his performance as Salim Malik in the film Slumdog Millionaire, which won the Academy Award for Best Picture of 2008 and for which he won the Screen Actors Guild Award for Outstanding Performance by a Cast in a Motion Picture.
Shortly after, his family moved to Mumbai where he joined AVM High for his schooling and Madhur forayed into acting and dancing on stage in charity shows, cultural events and film-award ceremonies.
As a child actor he worked in well known Hindi films like One Two Ka Four, Kahin Pyaar Na Ho Jaaye, and more recently Say Salaam India.
[5] Most recently, he starred in the Disney film Million Dollar Arm as Dinesh Patel and received good reviews for his performance as the villain in Maatr (2017).
[citation needed] Mittal, in the year 2020, did a web series named High on the OTT platform MX Player and gained some good reviews for that role.