Oru Mugham Pala Mugham (1983)

Embedded with fierce action and charged emotion, this fast-paced family thriller traces the twists and turns in the life of Ravindran, a fearless young man. In a quirk of fate, Ravindran ends up in prison after accidentally killing a man while driving under the influence of alcohol. However, this punishment turns out to be a boon in disguise, when he is informed by his cellmate, Krishnan, that he is the son of Sankara Narayanan Thampi, a member of the Thampi family, and rightful heir to the family fortune. His adoptive mother, Subhadramma Thankachi, wrecks the Thampi family by switching the rightful heir, Ravindran with her own son, Sukumaran, while they were still babies, so that he could claim the family fortune. Shocked by this information, Ravindran is incensed and infuriated by the injustice committed by his adoptive mother and decides to exact revenge upon her and her son, Sukumaran. What clever ploy will he adopt in order to fulfil his mission? Who will support him along the way? Will he succeed in convincing the crimes of the past and claim his place as the rightful heir to the family?