An indian army aviation pilot was died, and another was injured after their helicopter crashed in siachen . The Cheetah Helicopter they were onboard was on a routine maintenance sortie. After unloading supplies at the Bheem post on the Northern glacier , the helicopter took off and crashed within minutes. The chopper was crashed on the siachen glacier, the world's highest battlefield, during a routine supply sortie, the army headquarters here said. The two officer-pilots were trying to land the chopper at the Bhim post helipad in northern glacier area when they lost control of the flying machine and it crashed 400 metres short of the helipad, an officer in the army headquarters said. "The pilot was killed and the co-pilot was badly injured. The army is evacuating the injured officer to a military hospital," the officer said.