Tumhari Kasam (1978)

Orphaned at an early age, Vidya, her brother, Raja, live a poor lifestyle with their maternal uncle. While the uncle is out of town, the responsibility of looking after the household is on Vidya's shoulders. Raja takes to petty crime, and runs away from home. Vidya takes on the job of a maid-servant in the house of a wealthy family. While attending to her chores, the wealthy family's alcoholic son, Anand, molests her, and wants to be intimate. After a struggle Vidya is able to shake him off and run away - out from the house - into the street, where she is hit by a speeding vehicle. She is taken to hospital by the owner of the vehicle, Advocate Sunil Kapoor, where she finds out that she has lost her vision. Traumatized with the accident, unable to see, and locate her missing brother, Vidya is devastated, There is no visible sign of anybody coming to assist her. Will Vidya and Raja ever meet again? What has happened to Raja?