Neela Vanam(1965)

Babu and Vimala are lovers. However, under a circumstance Babu is forced to get married with dying Gowri without the acknowledgement of Vimala. Vimala and Gowri are friends. Shocked by the fact her lover get married to Gowri, Vimala and Babu tried to keep their past as a secret from Gowri.