Hyderabad, Nov 3 (PTI) The Telangana government has announced that a helicopter-borne Versatile Time-Domain Electromagnetic (VTEM) Plus Magnetic Geophysical Survey will begin on Monday to restart work on the SLBC tunnel project, which was halted after a portion collapsed in February this year, claiming eight lives.

Chief Minister A Revanth Reddy and Irrigation Minister N Uttam Kumar Reddy will oversee the launch of the heli-borne operations in Nagarkurnool district on Monday, an official release said.

Conducted by scientists from the National Geophysical Research Institute (NGRI), the survey involves flying a helicopter along a 200-km stretch with an underslung 24-metre-diameter transmitter loop that emits electromagnetic signals into the ground.

These signals generate eddy currents, wh

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