GOALPARA, August 19: A group of 20 hardcore Rabha militants along with a huge cache of arms and ammunition surrendered to the Goalpara district administration in presence of high police and Central Reserve Police (CRPF) officials at a simple function here on August 15 last. The surrendered militants of the Rabha National Security Force (RNSF) were led by Laberson Rabha, district commander of the outfit who laid down a US-made sub-machinegun. Other weapons deposited by the cadres included a .22 US-made rifle, four foreign-made revolvers, two hand-made bombs, one Sten gun, one pistol and 80 rounds of ammunition.