Anil Ambani's Reliance Natural Resources Ltd (RNRL) will get assured gas supply of 28 million metric standard cubic metre per day (mmscmd) from the Krishna-Godavari basin for 17 years, the Bombay High Court ruled on Monday.
The court has also fixed the price at $2.34 per million British thermal unit (mmbtu).
RNRL had approached the court against Mukesh Ambani's Reliance Industries Ltd (RIL) that had refused to give gas at $2.34 per mmbtu from the Krishna-Godavari basin.
The court has directed RIL to arrive at an arrangement along these lines within a month.
It has also said the Ambani brothers may consult their mother if there is any difficulty at arriving at a conclusion.
At 11.15 am, shares of RNRL were up 20 per cent at Rs105 while RIL shares fell 4 per cent to Rs 2,258.