a. ONGC – ONGC stands for Oil and Natural Gas Corporation (earlier Commission) Ltd. It was set up in 1956. It is the apex body which undertakes prospecting and refining crude oil in India.
b. GAIL – GAIL stands for Gas Authority of India Ltd. It was set up in 1984 and is the largest organisation in India handling post exploration activities relating to transmission, processing and marketing of natural gas and its by-products. It owns and operates about 5000 km of gas pipeline.
c. LPG – LPG or Liquefied Petroleum Gas is a clean fuel which does cause pollution. It has a high calorific value (50 kJ). In addition, it does not produce any poisonous gases while burning and is easy to store and transport.
d. CNG – CNG or Compressed Natural Gas is used for running vehicles and produces negligible amounts of nitrogen and sulphur when burnt. CNG can be easily transported. It is fast replacing petrol and diesel as a fuel for vehicles.
