Ithiri Poove Chuvannapoove movie tells Balagopalan (Mammooty) who is elder brother of Unni (Rahman). Unni who is a college boy with friends and girl friend. The family is happy . Unni becomes a nexalite. Balagopalan is a cop. all this in the flash back.

Raja learns that the girl he loves is in love with another man. When he comes to know about the long-standing dispute between both their families, he goes to their village to unite them.

Outgoing Meera and shy Nithya are best friends since childhood. They share an apartment together in an expansive complex. One day, handsome Venkat moves in with his grandparents, and Meera is smitten She starts to make anonymous calls to him, and he finds himself falling in love with her. A friend suggests that he use caller ID to locate her, which he does. At that time, Meera hands the phone to Nithya to run an errand. Nithya is the face he sees holding the phone, and despite being engaged to Shakti, she likes him too.....

Pounraasu, who is secretly in love with Nagamani, chooses to remain silent when her marriage is fixed with his elder brother since he does not want to come in the way of his elder brother's happiness.

A woman named Thulsi arrives in the life of a man and makes repeated appearances. It begins to wreck his family life.