India wants Qatar to delink the price of its imported gas from that of oil under long-term deals, the oil minister said on Monday, to make supplies cheaper for price-sensitive customers after a sharp fall in spot prices of the cleaner fuel.Liquefied natural gas (LNG) sourced from the spot market costs about half of that under the long-term deals.India in 1999 signed a long-term LNG deal with Qatar for supplies from 2004, with volumes gradually rising to 7.5 million tonnes per annum (mtpa).