Avunu Vallidharu Istapaddaru is romantic with comedy based movie in which, Anil is an unemployed postgraduate. After trying for too many jobs, he settles for a night watchman job. He desperately needs a room to stay in the city. There lies a colony with 5-6 specimens, who have a unique style of living their own life and seeing the outer world.
One specimen gives him a room on the condition that he should be there in room only during daytime. Actually that room belongs to a lady called Swathi, who works in a software company. They manage in such a way that Swathi is unaware of the fact that another person is staying at her place when she goes office. Even though Anil knows that he is staying in an unknown girl's room, he is never bothered to know about that girl.
After a month, Anil breaks an artifact by accident and he does not want to face the embarrassment. Hence he leaves a letter to the girl telling what exactly has happened. Liked by frankness, Swathi lets him stay in her house (in her absence). They become good roommates by exchanging letters and cute things, though they never bother to see each other. They fall in love as well.
After sometime, Anil realizes that his roommate is none but his friend. But he wants that thrill to be continued. So he does not reveal this fact to her. The girl wants to see her roommate only during the time of their wedding. rest of the story how they get togather in the end.