Reliance Capital chairman Anil Ambani Tuesday made an open offer to shareholders to hike their stake in the financial services company by 20 percent.

The offer is being made at a price of Rs.231 for each share of Reliance Capital, said a statement issued to the Bombay Stock Exchange.

The offer will open Aug 11 and continue till Aug 30, said the statement.

Anil Sunday announced an investment of Rs.20 billion ($458 million) in Reliance Capital to make it a financial powerhouse in the country.

Investment in Reliance Capital would be at Rs.228 a share or at a premium of Rs.40 over the current price.

The Reliance business empire, India's largest private business conglomerate, was last weekend split to settle a feud between Anil and his brother Mukesh.

Under the settlement, Mukesh will get complete control over oil refining and gas firm Reliance Industries, which is India's largest private enterprise, and former state-run company Indian Petrochemicals Corporation Ltd.

The younger Ambani, on the other hand, will manage Reliance Energy, Reliance Capital, and Reliance Infocomm.