Aritra made his first appearance with the Bengali megaserial Tithir Atithi which was aired on ETV Bangla from 2003 to 2009. He gained publicity for the first time as he anchored the show Dance Bangla Dance Junior in Zee Bangla in 2007. After that, he got a chance to act in the 2008 Bengali movie Chirodini Tumi Je Amar along with actors Rahul Banerjee and Priyanka Sarkar. It was his first silver screen appearance. Since then, he has been cast in a number of Bengali films. He has also featured in a lot of television serials and reality shows.