Apoorva Raagangal (1975)

Complex and controversial, this bold romantic drama delves into the social norms that govern romantic relationships, and taboos surrounding relationships that are deemed inappropriate by society. Rebellious and headstrong, Prasanna (Kamal Haasan) leaves his wealthy father to lead life on his own terms. He is nursed back to health by a classical singer Bhairavi (Srividya) after a bloody street-side fight. The two are slowly attracted to each other and decide to marry in spite of their age difference and a past relationship that Bhairavi is still inextricably tied to. In the meantime, Prasanna's father (Major Sundararajan) embarks on a relationship with the young Ranjini (Jayasudha), who just happens to be Bhiaravi's daughter (born to her out of wedlock). This convoluted situation with Prasanna's father wanting to marry his would-be daughter-in-law, and Prasanna himself wanting to marry his would-be mother in law, becomes further complicated by an unexpected twist when, Bhairavi's long-lost husband (Rajinikanth) comes into picture.