@ghosh! You say that ur wife is influenced by her parents & if she goes to them 4 a single day, she is brainwashed...
Come on dude, she is not a child.... she is now mother of a child besides a responsible wife.... If she is so spoon fed then OPEN UR EYES. Ur life wont b left easy by ur in-laws.... dont be dumb & shed tears 4 ur daughter.... her life too will be spoiled if she is reared in such a disgusting enviornment.
Prepare ur mind 2 get divorce, collect proofs as suggested by the member..... if u fight smartly u wil be able to get ur daughter too less ur wife.