Otter 457 was delivered to the Indian Air Force on 30th August 1966 with serial M-670. It was one of four new Otters delivered during August / October 1966, the last Otters delivered by DHC to the Indian Air Force. They were crated and shipped to India where they were re-assembled and entered service. It is known that M-670 served with 41 Squadron at Delhi-Palam Air Base between 1976 and 1980 as a dual trainer. It was written off in Indian Air Force service, details unfortunately unknown.
Full history up to 2005 courtesy of Karl E Hayes from DHC-3 Otter - A History (CD-ROM 2005).