[1] Nagar started his acting career in 2003 with a devotional TV serial, based on Sai Baba as a lead role of Sri Sai.

Nagar did about 25 TV serials on various Channels, i.e. Kaali – Ek Agnipariksha[8] (Star Plus), Seven (Sony), Kismat (Sony), Vaseeyat (DD), Dhoondh Legi Manzil Humein (Star One), etc.

These serials did reasonably well at that time and exposed him to many filmmakers in the industry, leading him to being cast in so many famous Bollywood Movies such as Bhouri[9] alongside stalwarts like Raghuveer Yadav, Aditya Pancholi, Shakti Kapoor.

He has consistently won rave reviews for all his performances in films such as Semshook (2010),[10][11] Children of War (2014)[12] Gurjar Aandolan (2014),[13] Uvaa (2015)[14] Bhouri (2016)[15] Risknamaa (2019).

[16] Nagar made his directorial debut as a writer and director in a real story based epic drama Gurjar Aandolan[17] (2014), which was banned by the Rajasthan Government and never had a theatrical release in Rajasthan due to its issues based on the real 'Gurjar Agitation' which was happened in '2007-2008' in Rajasthan.