Wealth begets wealth, goes the adage. Since the launch of his telecom venture Reliance Jio last year, Mukesh Ambani has been on a roll. Early this year, Jio crossed the 100-million subscriber mark in a record 170 days. The revenue potential of Jio, coupled with a steady growth in other businesses, has restored investor confidence in Reliance Industries ( RIL). On the back of the jump in RIL stock price, Ambani’s wealth has shot up a whopping 58 per cent to `2.57 lakh crore this year, as per Hurun India Rich List. Not only has Ambani retained the top spot in India, but has also made it to the top 15 in Hurun’s global rich list for the first time.