Army officials said the chopper crashed around 11.45 AM when it was returning to the camp’s helipad at Sukna, near Silgirui, from a routine mission.
While three officers died on the spot, a JCO was evacuated and admitted to a hospital in a critical condition.
The army’s 33 Corps is based at Sukna and all aircraft of the Army are run by Army Aviation Corps.
A Court of Inquiry has been ordered into the incident.
PTI