A large group of Maoists who ambushed a team of the Central Reserve Police Force or CRPF in Chhattisgarh's Sukma area on Monday, killing 25 soldiers in the deadliest attack in seven years, used rocket launchers, grenades and crude bombs. One survivor of the attack said 300 Maoists swooped in on the soldiers, who were part of a road opening patrol, just 2 km from the CRPF camp. This raises questions on how so many Maoists were present and in a position to carry out an attack as major as this.