After nearly four people lost their lives and several others were injured, the police have registered seven FIRs in connection with the violence stemming from a court-ordered survey of a Mughal-era mosque in Sambhal. Among those named as accused are Samajwadi Party MP Zia-ur-Rehman Barq and Sohail Iqbal, the son of local SP MLA Iqbal Mehmood, officials reported on Monday.