Filmmaker Vikas Bahl, accused of sexual assault by a former employee of Phantom Films, has filed a Rs. 10 crore defamation suit against Anurag Kashyap and Vikramaditya Motwane, his former partners in the production house. The court, during the hearing Wednesday, directed Bahl to make the woman employee a respondent to the suit and adjourned the hearing to October 19.