Scientific precision will guide SLBC completion, says Uttam

The heli-borne magnetic survey, conducted using a special transmitter fitted to the helicopter, will collect geological data up to a depth of 1,000 metres, to help identify underground shear zones and water flow patterns, which are critical for planning and executing the SLBC tunnel works

​The heli-borne magnetic survey, conducted using a special transmitter fitted to the helicopter, will collect geological data up to a depth of 1,000 metres, to help identify underground shear zones and water flow patterns, which are critical for planning and executing the SLBC tunnel works