1. "Indian Oil Corporation(IOC)"
2. "GAIL"
3. "ONGC (Oil and Natural Gas Corporation)"
4. "Reliance Petroleum Limited"
GAIL
"1. "Nalanda"
2. "Vikramshila"
3. "Taxila"
4. " Ujjain"
Taxila
"1. "Kolkata"
2. "Delhi"
3. "Bengaluru"
4. "Chennai"
Kolkata
"1. "ShershahSuri"
2. "Shahjahan"
3. "Aurangzeb"
4. "BahadurshahZafar"
Aurangzeb
"1. "Allahabad"
2. "Jaipur"
3. "Mumbai"
4. "Jabalpur"
Jaipur
"1. "6.4 billion dollar"
2. "5 billion dollar"
3. "5.4 billion dollar"
4. "7 billion dollar"
5.4 billion dollar
"1. "Rudra"
2. " Varun"
3. "Chetak"
4. "Indra"
Rudra
"1. "Reliance"
2. "Bharti Group"
3. "Toyota"
4. " LIC"
Bharti Group
"1. "Chemical Pollutants"
2. "Radio-active Pollutants"
3. "Water Pollutants"
4. "Air Pollutants"
Air Pollutants
"1. "Prime Meridian"
2. "International Date Line"
3. " Equator"
4. "Tropic of Cancer"
International Date Line
"