A man heading towards Rameshwaram via Chennai express to immerse his late grandfather's ashes unwillingly gets caught amidst goons after helping their boss's daughter and them board the train.
Rahul, a young man of 40, runs a sweet shop established by his grandfather, whose death gives him a chance to enjoy his life and step out of the regular stereotypes. However, first he is given the task of immersing his grandfather's ashes in the holy waters of Rameshawaram. While he's on the journey, he unintentionally becomes the part of another journey : to Komban village, because of being a witness to what happened with the ticket collector. The ones who did with the ticket collector were none other than the cousins of Meenamma, the woman Rahul had helped board the train. What happens further in this journey of adventure, comedy, drama, action, and of course, true love, forms the rest of the story.