Aanchal revolves around the lives of two brothers, Kishan (Amol Palekar) and Shambhu (Rajesh Khanna). Kishan is married to Shanti (Raakhee), but both are unable to have children. When Tulsi (Rekha) and her blind mother come to live in the same village, Shambhu falls in love with her. Tulsi is the cousin of Jaggan (Prem Chopra) who does not like Tulsi and Shambhu together and plots to separate them. Jaggan creates false rumours about Shanti and Shambhu having an affair and as a result, Kishan decides to marry again - to Tulsi - at the suggestion of Jaggan, divorcing Shanti. Will this controversy ever be resolved? Will Shambhu and Tulsi marry?