PATNA, June 6 -- An FIR was registered against Faisal Khan, popularly known as Khan Sir, on Friday in connection with vandalism and firing at his coaching institute - Khan Global Studies (KGS) - in Patna, police said. This comes a day after police detained two security guards for allegedly firing shots after a group of 15-20 people had allegedly vandalised at the institute on June 2. According to police, Faisal Khan's name was added in the FIR after the security guards told the police that they had fired on the direction of Khan. He has been booked for attempt to murder under relevant sections of BNS and Arms Act at the Kadamkuan police station. "His two guards during interrogation told the police that he instructed them to fire and he would handle the rest. The guards admitted that they had fired two- each rounds," said a police officer....