[5] Growing up in Delhi, in an interview he told how he was exposed to Afghan culture through his father, who could speak Pashto and Persian.

[7] Mukul Dev made his acting debut on TV through a serial Mumkin playing the role of Vijay Pandey in 1996.

He made his film debut in Dastak as ACP Rohit Malhotra in the same year which also introduced crowned Miss Universe Sushmita Sen.

He acted in several television serials in the 2000s such as Kahin Diyaa Jale Kahin Jiyaa (2001), Kahaani Ghar Ghar Kii (2003), Pyar Zindagi Hai (2003) and participated in a dance competition show Kabhi Kabhii Pyaar Kabhi Kabhii Yaar (2008).

In recent years he has played supporting roles in films like Yamla Pagla Deewana (2011), Son of Sardaar (2012), R... Rajkumar (2013) and Jai Ho (2014).