Rishi Moolam (1980)

Sekhar is separated from his twin, Anand, after getting abducted and grows up to be a criminal. When Sekhar is injured in an encounter, the police ask Anand to impersonate him and bring down his gang.

In order to marry Lalitha, Madhan sets out to find suitable bachelors to marry her three beautiful sisters as part of a condition set by her father.

Venkatchalam lives with his sister Indumathi, who hates men and vows to never get married. When Sanjeevi, Venkatchalam's friend, meets Indumathi, he falls in love with her.

Gopal dearly loves his brother Raju, despite the latter's unkind acts and frauds. But fate seems to have something else in store for Gopal as he is soon accused of killing Raju

Ravi, the only son of Vedachalam (Baliah), has traveled on business. Returning home, he meets a young woman on the train after picking up her spilled luggage. The contents of the luggage reveal that she is his sister, from his father's teenage years. When he returns home, she is moved in and living a life of wealthy luxury. But is she really who she says she is?

Vaidyalingam Moopanar and his younger brother Sundaralingam live together along with their family. It is one big happy joint family. Vaidyalingam does not have any children while Sundaralingam has two sons. His older son's left hand is paralysed since childhood, while his younger son is studying in college in the city. Vaidyalingam's wife is bitter and keeps cursing Sundaralingam and his family, while Vaidyalingam is very affectionate towards them and is unhappy with his wife for her bad behaviour.

A young man Raghu sets up an explosive in a railway track to blow up a train. Raghu is a freedom fighter who wants to destroy the train in which British officers are travelling. He returns home after his successful attempt and is slammed by his rich father who is an ardent supporter of the British. Raghu insists that his country and its freedom are more important than anything. When police comes to arrest Raghu, his father hands him to them but Raghu's pregnant wife Parvati diverts the police and lets her husband escape. Raghu escapes in his bike and meets with an accident and is declared dead. Parvati gives birth to a son named Ashok and ten years pass by. She is away from her father-in-law and still in a belief that her husband is alive and shall come to them one day.

A happy-go-lucky guy falls in love with his professor's daughter. Although his brother supports him, his financial situation forces him to make many sacrifices in life.

Murli (Rajnikanth) and Prabhu (Kamal) are owner and manager respectively, of an advertising agency in Madras. Prabhu has been raised by Murli's family, and feels greatly indebted to them. Prabhu is in love with Padma (Sripriya), but a misunderstanding leads them apart. In the meantime, Murli meets and falls in love with Padma.

Chandru, a singer, is on tour with his troupe in Singapore, where he meets Sona and falls in love with her. However, his life changes when he learns that she is terminally ill.

Story about a spoilt girl and a guy who changes her and saves her from killers.

Raja falls in love with Bhuvana, the daughter of a landlord. However, the landlord declares that he will agree to their relationship only if Raja forsakes his mother.

Marudhu tosses his look-alike Pandiya into the sea as a goon promises to pay him a huge sum of money. However, they are in for a shock when Pandiya returns after being rescued by fishermen.