Mohan was introduced to the Telugu film industry through the film
Rangula Ratnam in 1966. In 1968, he starred in
Sukha Duhkalu, as the caring brother of
Vanisri's character, for which he received awards. Mohan received critical reception for his performance in box office hits such as
Rangula Ratnam (1966) for which he received the state
Nandi Award for Best Actor,
Padaharella Vayasu (1978) for which he won the
Filmfare Best Actor Award (Telugu), and
Siri Siri Muvva (1978). His first Tamil film was
Naalai Namadhe (1975). Some of the films in which he starred as the lead actor are
Seetamalakshmi (1978),
Ram Robert Rahim (1980),
Radha Kalyanam (1981),
Rendu Rellu Aaru (1986), and
Chandamama Raave (1987). ==Death==