Topic: Uttarakhand tunnel rescue

Navayuga Engineering Company Limited, the builder of the Silkyara-Barkot tunnel in Uttarakhand where 41 workers were trapped for 17 days, purchased electoral bonds worth Rs 30 crore six months after an Income Tax Department raid, as per data shared by SBI and Project Electoral Bond, an investigative journalism project.

The house of Wakeel Hassan, who was the head of the group of rat miners who saved the lives of 41 trapped workers in Uttarkashi's Silkyara tunnel, has been arbitrarily bulldozed by the Delhi Development Authority on Wednesday.

When modern equipment collapsed in the face of the dispiriting challenge, officials turned to the primitive method of rat-hole mining, used to extract coal...