The Naval divers undertook the task recording of the depth of the glacial lake using a handheld echo sounder.
The scientists will use this data to determine the pressure on the mud wall of the dam as per Indian Navy confirmed sources.
As per reports coming in a joint Indian Navy-IAF operation on 20 Feb, naval divers were winched by IAF's.
Advanced Light Helicopter at a height of 14000 ft to measure the depth of the glacial lake formed 5 km upstream of Tapovan, Uttarakhand
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