Question

FULL form of SAIL , ONGC , IOC , NTPC and CIL ????

Answer 1

SAIL- Steel Authority of India Limited
ONGC- Oil and Natural Gas Corporation Limited
IOC- Indian Oil Corporation Limited 
NTPC- National Thermal Power Co-operation
CIL- Coal India Limited

Hope it helps!!

Answer 2

SAIL - STEEL AUTHORITY OF INDIA LIMITED
ONGC - OIL AND NATURAL GAS CORPORATION LIMITED COMPANY
IOC - INTERNATIONAL OLYMPIC COMMITTEE
NTPC - NATIONAL THERMAL POWER CORPORATION LIMITED
CIL - COAL INDIA LIMITED