Rajasenan, a well known director in Malayalam, debuted with the movie 'Aagraham' in 1984. As a director, he has a particular style, appealing to the masses. He mainly gives importance to comedy and family oriented subjects. His early hits include 'Pavam Crooran,' 'Soundarya Pinackam,' 'Kadinjool Kalyanam,' 'Ayalathe Adheham', 'Meleparambil Anveedu', 'Aniyanbava Chettanbava', 'Sreekrishnapurathe Nakshathrathilakkam' and the list goes on. Each movie of his has a subtle moral to convey. However a couple of movies in between failed to click at the box office, like 'Mekhasandesham', Nakshathrakkannulla Rajakumaran Avanundoru Rajakumari' and 'Immini Nalloraal'.
Rajasenan's favourite hero in the Malayalam , is Jayaram. Together they have brought out various hits with themes mainly aimed at family audiences. The films produced by this team, are all time . Some of the best examples are 'Swapna Lokathe Balabhaskaran', 'Dilliwala Rajakumaran', 'Kottaram Veettile Apputtan' and of 'Meleparambil Anveedu' etc. Meanwhile rumour mills in the film industry, claimed that Rajasenan could not direct a film which would succeed without Jayaram, and vice versa. This apparently affected their . However in 2006, they came together again, after a gap of few years, with the movie 'Madhuchandralekha', which was a success at the box office.
According to him, teaming up with a particular actor affects a director's , as the audience then are reluctant to accept different themes from a well known director like him. When asked about not casting superstars of the Malayalam film industry, like Mammootty and Mohanlal in his films so far, Rajasenan said that his style of approach and the superstar image of these actors does not gel well with his scheme of things. He did mention though that he plans to take a movie with Mohanlal in the future.