New Delhi, Aug. 10 -- The government and its company GAIL India Ltd are weighing diplomatic and legal options to secure over 2.5 million tonne annual liquefied natural gas supply from Russia after an erstwhile subsidiary of Russian gas giant Gazprom diverted the contracted LNG to Europe for windfall gains, two people aware of the matter said. The supply of Russian liquefied natural gas (LNG) was abruptly stopped after energy prices spiked due to the Ukraine war, which left GAIL with two options - rationing of natural gas supply to industrial consumers or meeting the shortfall by paying huge premium in the spot market. As spot price of LNG spiked over 127% to about $50 per unit since the Ukraine war, the second option is not commercially viable, they said on condition of anonymity. P16...