'RNRL has never questioned the ownership of the union of India over the underground reservoir under Article 297 of the Constitution of India,' the company said, adding that RIL, however, was 'committed to supply gas that belongs to it'.

RNRL also asserted that RIL has been changing its stance with regard to the family agreement when the Ambani empire was split between the brothers.

Detailing RIL's response on different occasions, RNRL said 'this fully exposes RIL's blatant lie and falsehood'.

The Bombay High Court June 15 ruled said RIL should provide 28 million cubic metres of gas per day to RNRL at $2.34 per unit, and that they should sign a necessary agreement regarding this within a month.

RIL, however, is pleading that it was only a contractor for the gas from the Krishna-Godavari basin's D6 block and did not have the power to fix the price, while the government also moved a special leave petition asserting its right on pricing and distribution of natural gas.

The apex court has decided to commence hearing on this matter Oct 20.