June 4, 2012.BG is facing aggressive bargaining in the sale of 65% stake in its city gas venture, with the sole bidder, Gujarat State Petroleum Corp (GSPC), offering to pay less than its original bid, and the rupee's depreciation squeezing the returns further for the global energy firm. The currency's fall, from about 43 against the dollar last year to about 56, has also hit valuation of the stake as BG's unit, Gujarat Gas Company (GGCL), depends on import of liquefied natural gas (LNG) as domestic gas is scarce. GSPC had earlier offered to pay 300 per equity share of GGCL.