Ten days after its Dornier surveillance aircraft with three officers on board went missing, the Coast Guard filed a formal police complaint on the matter on Thursday.
The Dornier flight with three crew members, all deputy commandants, went missing on June 8 after a routine maritime surveillance sortie along Tamil Nadu coastline.
Fifteen ships belonging to both the Coast Guard and the Indian Navy are a part of the search mission, in addition to the advanced Boeing Poseidon P81 surveillance aircraft.