Reliance Industries' Chairman Mukesh Ambani has been ranked 17th in the latest world billionaires list by Forbes with a net worth of $44.3 billion – once again leading the tally from India's perspective.

Mukesh Ambani chairs and runs $88 billion (revenue) oil and gas giant Reliance Industries, among India's most valuable companies. Reliance Jio has signed on more than 340 million customers by offering free domestic voice calls, dirt-cheap data services, and virtually free smartphones, said the report.