About ten suspected militants fired from sophisticated weapons and hurled bombs during the 30-minute operation at the camp on Wednesday night, a police officer said.
Although nobody was injured, property worth around Rs 1.5 lakh was damaged.
Police recovered from the spot the following morning an unexploded hand grenade along with forty empty cases, seven projectiles of AK-57, a plastic AK-57 magazine with eight rounds and three projectile of M 16, he said.