BJP chief JP Nadda has reportedly pulled up a party MLA from UP who has been defending an aide who shot a man dead in public in Ballia. Nadda has sought an explanation from Ballia MLA Surendra Singh and has also reportedly warned the party's UP chief over the MLA's conduct. The BJP's notice to the MLA comes four days after his aide, former army man Dhirendra Singh, allegedly shot a villager dead during a Panchayat meeting in the presence of officials and the police. The MLA had defended the alleged killer saying that he fired in self-defence. Dhirendra Singh, was missing since the shooting on Thursday, was arrested on Sunday.