After Biswa graduated in Biotechnology from IIT Kharagpur in 2012,[5][6][7] he worked at the mobile security startup, BitzerMobile. It was during this time that he met Kanan Gill at an open mic event in Bengaluru in 2013.[8] He quit his job at Oracle in 2014 to become a full-time comedian.[9]
Biswa and Kanan came up with the idea of the Pretentious Movie Reviews, a series of videos which soon went viral on YouTube. In this series, they review critically panned Bollywood films.[10] They chose Bollywood movies because they are so embedded in the Indian pop culture.[11][12] In 2014, he performed his first live show along with Kanan Gill in Gurgaon.[13]
He started doing stand-up comedy in 2015 and went on his first solo national tour, Biswa In your Face in September 2015, doing shows in Bengaluru, Pune, Mumbai, Hyderabad and Kolkata.[14] In 2015, he hosted the Comedy Hunt along AIB and other comedians and also did a tour named Biswa Mast Aadmi.[15] He has also created a web series called "Laakhon Mein Ek" which released on Amazon Prime Video in October 2017.[16] and appeared on HDFC Life's Behind the Journey video series[17]
In December 2020, Biswa launched an exclusive Masterclass[18] for the aspiring stand up comedians with FrontRow.