The Secretary, Ministry of Mines & Chairman, CGPB, Shri Vishwapati Trivedi…
The Secretary, Ministry of Mines & Chairman, CGPB, Shri Vishwapati Trivedi releasing the Annual Report 2011-2012 of Geological Survey of India, at the inauguration of the 51st Central Geological Programming Board meeting of the Geological Survey of India, in New Delhi on August 24, 2012.
