State-run power PSU NTPC on Saturday moved the Supreme Court challenging the Bombay High Court judgement that allowed Mukesh Ambani Group company RIL to amend its petition on the gas dispute.
A ministerial group had approved $4.2 per mmBtu as the value of gas from RIL's KG-D6 fields, but before that the company had won a contract to supply 12 million cubic metres of gas per day to NTPC's Kawas and Gandhar projects with a bid of $2.34 per mmBtu in 2004.
The government has separately filed a petition in the Ambani brothers' gas dispute, saying it alone had the right to approve gas price.
