From June 28 to 30, 2016, the Army conducted the biggest flood relief exercise in Guwahati to prepare for coming exigencies Ex Jal Rahat. The exercise involved personnel of the Army, Indian Air Force (IAF), Navy, the state government, National Disaster Relief Force and Assam State Disaster Management Authority on the banks of the river Brahmaputra. Besides ground forces, participants included a UAV (unmanned aerial vehicle) squadron and medical staff. Army Aviation Corps’ Cheetah and Advance Light helicopters and the IAF’s MI-17 helicopters were used for aerial reconnaissance. Divers of the Navy, NDRF and SDRF practised rescue, resuscitation and first aid and taught the technique to local populace.