Kalimuthu was in Mumbai and had underwent the surgery and became a transgender a couple of years ago, police said.
After becoming Aparna, he returned to his native in Uppili, some two moths ago. However, his mother, averse to his behaviour, refused to accept Kalimuthu as Aparna and asked him to get out of the house.
Depressed over this, he committed suicide by hanging himself from the ceiling of the house today, they said.