Ilamai Oonjal Aadukirathu

Ilamai Oonjal Adukirathu English Youth is swinging is a 1978 Tamillanguage Indian feature film directed by C. V. Sridhar. It has Kamal Hassan and Sripriya in lead roles with Rajinikanth and Jayachitra in supporting roles. It had a 175day run at the box office. The film was later remade in Telugu as Vayasu Pilichindi 1978 and in Hindi as DilENadaan 1982.

A disturbed Jayanthi avails leave and goes to her village and Padma joins her, as Prabhu goes on an official tour. Prabhu, planning to surprise Padma, proceeds to Jayanthis village to meet Padma. When Prabhu lands at Jayanthis home, she is alone as Padma has gone to attend a wedding in a nearby village. Jayanthi convinces Prabhu to stay back overnight, so that he can meet Padma the next day. Jayanthi arouses Prabhu in the night and they make love. Prabhu, feeling guilty about the whole event, writes a letter of apology to Jayanthi and leaves. Devastated to read the note when she returns to Jayanthis house, Padma returns to Chennai, where she starts distancing herself from Prabhu without revealing why.Murali continues to pursue Padma. When she falls down, he saves her and gets her admitted in a hospital, impressing her father. Murali happily informs Prabhu about his feelings for Padma being a good friend and grateful for the help given by Muralis family, Prabhu remains silent. He accompanies Muralis mother to formally propose Muralis marriage with Padma. Padmas father accepts the proposal, and Padma remains silent. When Prabhu confronts her, she reveals that she had read his letter to Jayanthi, who is carrying his child. Shocked with the news, Prabhu leaves Chennai without intimating Murali and his mother and they feel betrayed. Prabhu searches for Jayanthi and finally traces her in Bangalore. ........

Source: Wikipedia