Pakistani Rangers on Monday fired mortar shells on border outposts at several places in Jammu and Kashmir's Arnia sector, prompting retaliation by the BSF personnel guarding the international border. On Sunday night, Pakistani troops fired small arms and mortars, targeting Narayanpur area of Ramgarh sector in Samba district, hours after "pleading" with the BSF to stop firing, after being pounded with heavy artillery that left a trooper dead across the border.