Two pilots were killed after an Army Aviation Cheetah helicopter, flying an operational sortie near Bomdila in Arunachal Pradesh, crashed on Thursday.
An investigation is being ordered to ascertain the cause of the accident, officials said.
Lt Col VVB Reddy and Major Jayanth A — pilot and co-pilot in the helicopter — were killed in the accident.
Lt Col Reddy, 37, is survived by his wife, a dental officer in the Army, and two daughters, aged four and six.
Major Jayanth, 35, is survived by his wife, who is based in Missamari, Assam, where he was posted.