GUWAHATI, July 21: The Chandmari police arrested one identified as Mokbul Sheikh on Friday from BG Colony, Bamunimaidam allegedly for sexually assaulting a 36-year-old woman who is mentally ill. According to police sources, the locals of the area apprehended the accused for being involved with the inhuman act and accordingly handed him over to the police. He hails from Dhubri district. However, he has been residing in a rented house at Bhaskarnagar. In connection with the crime, a case (No 335/18 u/s 376 (L)) has been registered. Notably, the FIR indicated that the victim was found to be two-month pregnant.