Kolkata (West Bengal) [India] February 10 (ANI): Days after violence erupted in West Bengal’s Sandeshkhali, Chairperson of the National Commission for Scheduled Castes, Arun Haldar labelled serious allegations against TMC leader Shahjahan Sheikh. Arun Haldar revealed that Sheikh is involved in various criminal activities and was behind the attack on the ED officials when they had reached his house to carry out a raid in connection with the ration scam probe. “Shahjahan Mulla is a resident of Sandeshkhali and has been involved in many criminal activities in the area. He is a traitor. We have al…