State- run National Thermal Power Corporation (NTPC) has approached the Supreme Court challenging Bombay High Court’s order in which the court had allowed Mukesh Ambani’s Reliance Industries Ltd (RIL) to amend its plea in the Krishna Godavari D6 block gas issues.

The firm, through its special leave petition, said, “The subject matter of disputes between petitioner (NTPC) and the Respondent (RIL) was under a global tender invited by the petitioner for supply of gas and was not as per any directive of the Central government".

Earlier, both companies signed a deal under which RIL was to supply 12 million standard cubic meters per day gas at US$ 2.34 per million British thermal unit to NTPC. However, RIL failed to keep its promise forcing NTPC to move in the Bombay High Court.

RIL filed its statement in the court on January 31, 2007 and sought amendment in its written statement which was allowed by single judge bench of the high court. Thus, the firm amended its statement on the basis of an affidavit filed by the government on January13, 2009 which was later withdrawn.