LPG gas cylinder prices: Oil companies have increased the prices of commercial LPG by Rs 101.5. This price hike, effective immediately, sets the cost of a 19 Kg commercial LPG gas cylinder at Rs 1,833 in New Delhi, with Chennai having the highest price at Rs 1,999.50, and Mumbai the cheapest at Rs 1,785.50 among the four metros. Kolkata will sell the commercial LPG cylinder for Rs 1,943.