Tamil (Vimal) was raised by his grandfather (Raj Kiran) single handedly in a village and 25 years later the boy is working in an IT company, Chennai staying in an upmarket posh apartment. Tamil meets Karthika( Lakshmi Menon) a medical student at a traffic signal and it is love-at-first-sight for him. He follows her and in no time she reciprocates. Tamil is now selected to go to US in three months and he brings his grandfather to the city to spend quality time before he leaves. The rest of the film is how the old man with a heart of gold creates havoc and nuisance in the life of Tamil, residents of the residential apartment and even in the American consulate!