Need to find a tamil novel name. I read during 2006

[Sesi]

I am searching for a tamil novel. I dont know the author name, which magazine and publisher it from. I studied that novel during 2006. the story line is heroine come and stayed in hero's house (may be for vacation or spend some time). hero has younger brother. hero was arrogant with her and dnt like to talk with her. Bcz hero has love failure (don't know about the lover history). Hero started liking heroine and heroine side also the same. but they didnt express it. One day heroine went to store room and found one portrait of a girl and put the frmae in the house. Hero saw that and started shouting at her in anger later she got to know that it was his lover. Hero also misunderstood that heroine love his brother. Later all the misunderstanding resolved and joined.