If international price of fuel comes down from its current price of USD 750 per metric tonne, domestic LPG can then be sold at "even more economical rates," the Centre told Lok Sabha on Thursday.

The day international price is determined by a "variety of factors" and "one of the analysis I read said that in a few years time it will all be thing of the past because there will be so much gas available," Union Minister for Petroleum and Natural Gas Hardeep Singh Puri said in the Lower House.