The brothers have been involved in several spats since the Reliance group's split. Before this, Mukesh was chairman and managing director of Reliance Industries and Anil vice-chairman. The latest dispute involves a deal by Reliance Industries to supply Anil Ambani-led Reliance Natural Resources with 28 million standard cubic metres a day (mmscmd) of gas for 17 years at a rate below the government price. The deal was part of the 2005 family settlement, brokered by their mother Kokilaben. __