Thodisi Bewafaii (1980)

Arvind Kumar Choudhary, a businessman grieving the loss of his wife, tries to rebuild his life with his son, Arun. He remarries Sujata, a widow with two daughters, hoping for companionship, but Arun struggles to adjust to the new family. Arun finds love with Neema Deshmukh, and they marry with the families' approval. However, a mistake—Arun accidentally damages a valuable diamond—triggers a series of events that leads the Choudharys to financial ruin. They are forced into poverty, and Arvind ultimately dies from the hardships. The story explores love, family, loss, and resilience as the family confronts life's unexpected challenges.