Karwa Chouth (1978)

Sitapur-based Mangala lives with her widowed mother and seven brothers, and is of marriageable age. Wealthy Banke Thakur would like to wed her, but she rejects him. She looks after an injured male, Anand, from Latpur, and after he recovers both fall in love with each other, and get married. She re-locates to live with his family, consisting of his brother, Mukund, and childless Bhabhi, Rani, who is very displeased as she wanted Anand to marry her gorgeous sister, Rambha; while Banke takes it upon himself to ensure that this marriage breaks up. Mangala continues to live in this household, and soon becomes pregnant. Mukund and Anand decide to travel for business purposes but promise to return before the baby is due. A few months later, they return and are told that Mangala has committed suicide after giving birth to a snake!!!