New Delhi, Dec 10 (ANI): Political parties are demanding West Bengal Human Rights Commission (WBHRC) Chief AK Ganguly to step down from his post on the occasion of Human Rights Day. Shiv Sena Spokesperson Sanjay Raut said that the party will take up the issue in Parliament and Justice Ganguly should step down as soon as possible. Meanwhile, TMC leader Derek O'Brien also followed the suit and said that 'violators can’t be guardians'.