India is likely to sign on Tuesday a multi-billion dollar deal to extend LNG imports from Qatar till 2048 at rates that are lower than current prices, sources said. Petronet LNG Ltd will sign the deal with QatarEnergy to extend import of 7.5 million tonne a year on sidelines of India Energy Week here. Sources said the price will be "significantly' lower than current price. Petronet currently imports 8.5 million tonne a year of LNG from Qatar under two contracts. The first 25-year deal is to expire in 2028 and is now being extended for 20 additional years. The second deal for 1 million tonne a year entered into in 2015, will be negotiated separately, sources said. India, the world's third biggest energy consumer, sees natural gas as a transition fuel for migrating to net zero carbon emissions by 2070. As part of this, the government is targeting to raise the share of natural gas in the country's energy mix to 15 per cent by 2030 from 6.3 per cent now. Sources said the current deal