In a new twist to the ongoing tussle for control of the Rs 90,000 crore (Rs 900 billion) Reliance empire, the rest of the Ambani family has asked Reliance Industries Ltd Chairman Mukesh Ambani to furnish 'appropriate details' of the ownership issues, which he claimed were settled by family patriarch Dhirubhai during his lifetime.

Family sources confirmed that over the weekend the 'Ambani family,' including mother Kokilaben and sisters Deepti Salgaoncar and Nina Kothari requested Mukesh to furnish appropriate details as per his statement on November 22.

• The Reliance ownership issue: Complete Coverage

Seeking to quell the raging controversy over his tussle with younger brother Anil, Mukesh had said last month that all 'ownership issues' were 'settled' during the lifetime of late Dhirubhai Ambani.

"My remarks (on ownership issues) were torn out of context. Dhirubhai Ambani has settled all ownership issues pertaining to Reliance within his lifetime," he had said in a statement.

"It is necessary to remove the confusion caused by deliberate misinterpretation or genuine misunderstanding. Therefore, I would like to set the record straight," he had said in that statement.

According to sources, the 'family's' view was that if Dhirubhai had settled all the issues in his lifetime, members would abide by his decision.

There was no reaction from Mukesh's camp on the missive from the other side.