Parallel to this , her twin sister tries to make Ravi Shankar a lunatic ( mental patient ) for the same reason to avenge her sister 's death .
Priyamani returns as ghost to avenge her death .
Parallel to this , Priyamani 's twin sister tries to make Ravi Shankar a lunatic ( mental patient ) for the same reason to avenge her sister 's death .
Priyamani returns as ghost to avenge her death .