Nirakudam (1977)

Dharmapalan (Adoor Bhasi) and his younger brother Satyapalan (Nellikkodu Bhaskaran) live together along with their families. The big happy joint family comprises the childless Dharmapalan and Satyapalan who has two sons - Devan (Kamal Haassan) and Rajan (Sudheer) who is studying in a college in the city.