Chatterjee established himself in the Bollywood industry with The Legend of Bhagat Singh in 2002 by playing Batukeshwar Dutt, and with the daily soap Janmobhumi in 2003.

[citation needed] Before getting his first job in GlaxoSmithKline Pharmaceuticals in 1996, he obtained a diploma in marketing and sales management from Bharatiya Vidya Bhavan.

Some of the major daily soaps featuring Chattopadhyay which garnered high "TRPs"[a] (ratings) are Joy Baba Loknath,[7] Shree Krishna Bhakto Meera,[8] as well as:Bhaswar also is being active on ott platforms like Hoichoi, he did the successful Paap season 1&2 and Six and The Adventures of Gogol for Addatimes.

● Mahanagar theke Doore (2023) Bhaswar Chatterjee runs an NGO, "Aparna Foundation" in his mother's name, which assists the poor and needy.

Later in 2021 during pandemic, it worked extensively in Kolkata where it fed the pavement dwellers for continuous 22 days along with Puri, Katra and specially Kashmir.The Ngo supplied a month’s ration to ghorawalas and pitthuwalas of Vaishnodevi Temple, to the houseboat caretakers in Srinagar, helped in marriage of a Kashmiri girl, build a house for a poor family.