It's just one big happy family scenario with Thiruselvan(Madhavan) an engineer who also writes, his wife Indira (Simran) a TV newsreader with three children, a girl Amudha (P.S.Keerthana) and Vinay and Akhil. All goes well until the couple decides to disclose the truth to Amudha that she is an adopted child of theirs on her 9th birthday. They tell her the truth that they had adopted her in a Red Cross Hospital in Rameswaram. From a happy family the scene now moves to a family having to deal with the emotions of an adopted child who feels disowned, betrayed and left out of the society. The child tries to run away from the house in search of her birth mother, played by Nandita Das. Chakravarthy and Nandita Das are a couple and a part of the LTTE. Charkarvarthy dies in the war, so her Dad brings Nandita Das to Rameswaram, but strongly believing in her cause for fight she disowns the child in a hospital and goes back to SriLanka. Understanding the persistence and the emotions of the child to see her mother, the scene now moves to the dense forest of SriLanka with all the war around. With only the name of the birth mother known they face difficulties finding Nandita Das. Prakash Raj plays the role of a doctor who helps in the quest. But finally when they find Nandita Das she is torn between the love of her child and her mission of liberation