GEOLOGICAL AND HISTORICAL ACCOUNT OF TUNNELS OF NORTH INDIA

MY lecture to PG Geology students of Patna University on March 21, 2017 on the topic: - GEOLOGICAL AND HISTORICAL ACCOUNT OF TUNNELS OF NORTH INDIA on the occasion of World Water Day.

It was a great feeling to address students of PG Geology in the lecture theatre, where I used to attend classes as a student.

I am really obliged to my respected teachers, who were also present to hear my deliberation.