Correct Answer: (b) Loni
Note: In the context of the question period, India's longest LPG pipeline (1410 km according to GAIL and 1414 km according to Petroleum and Natural Gas Regulatory Board) is from Jamnagar in Gujarat to Loni in Ghaziabad, Uttar Pradesh. Presently India's longest LPG pipeline (2805 km) is being laid from Kandla Port to Gorakhpur in Gujarat. Some sources indicate the length of this pipeline as 2757 km.