Raja Sen first received recognition with Subarnalata (1997), a teleserial, he followed it up with Adarsha Hindu Hotel, Arogyo Niketan, few episodes of Desh Amaar Desh are some of the notables of the Bengali television arena.
He has also documented the real life paradigm of the living legends of Bengal's World of Art & Culture, namely, Suchitra Mitra, Tapan Sinha, Sombhu Mitra, Subhas Mukhopadhyay.