Paytm founder Vijay Shekhar Sharma (39) is the youngest Indian billionaire. Mr Sharma founded fast-rising mobile wallet Paytm in 2011. He has also created Paytm Mall, an e-commerce business and Paytm Payments Bank. Mr Sharma ranked 1,394th on the list with a fortune of $1.7 billion, is the only Indian billionaire in the under-40 league.