A relationship till Ooty) is a 1967 Indian Tamil-language romantic comedy film written and directed by Sridhar.

The film stars Sivaji Ganesan and K. R. Vijaya, with T. S. Balaiah, Muthuraman, V. K. Ramasamy, Nagesh, L. Vijayalakshmi, Sachu and Sundari Bai in supporting roles.

The film was released on 1 November 1967 and became a box office success, running for over 100 days in theatres.

Vedachalam, a wealthy businessman from Ooty, is married to Sundari and has a son, Ravi who is now taking care of the family business.

After Sivakami's death, his daughter decides to seek him out and sets out to Ooty to confront him with proofs of his second marriage.

Tirupathy is Vedachalam's family physician and he sees a "Missing" advertisement placed by Vijaya's uncle and tries to find out who she is.

At his suggestion, Sundaram takes Vijaya home claiming that he ran over her and that she has lost her memory as a result of the accident.

Being anxious to get his son married to the wealthy Vijaya as soon as possible, Sundaram's father promises to conduct both weddings together at his expense.

Meanwhile, there is a little bust up as Thirupathy's wife informs Vijaya's uncle about her whereabouts and he kidnaps her on the wedding day.

After acting in a few sentimental films directed by Sridhar, Ganesan asked him to prepare a lighter script for their next collaboration, which became Ooty Varai Uravu.

[3][4] Sridhar and Gopu discussed the script at Gandhi Statue near Marina Beach and completed within two hours.

[5] The trope from Kadhalikka Neramillai of a man assuming a fake identity to help his friend win his love was reused here.

[14] Malathi Rangarajan of The Hindu noted, "The greatness of [Chitralaya] Gopu's scripts lies in the fact that even with a massive cast, he provided ample scope for every role", citing Ooty Varai Uravu as an example.