Suryatapa (1965)

Another call on "I Married a Dead Man" but with a change- the family hated the DIL and didn't want her, but wanted the child, the heir. The woman and the child had been attacked and couldn't live apart. Aditya's grandparents mistake Kanak for being the other woman in his life and blame her for his death. Kanak develops a strong bond with Aditya's son and everyone accepts her in the family.