Aakhri Khat

"Aakhri Khat" (1966) is a Bollywood film about a young couple who marry secretly. The man then leaves to pursue an education. When his wife gets pregnant, her step-mother sells her to a man, who eventually abandons her and her son. The woman eventually dies and the child, now about a year old, has to fend for himself. Meanwhile, his father is trying to track him and his mother down.

The title means "The Last Letter" and refers to the letters the woman wrote.