Forbes Billionaire 2018 List: Paytm Founder Vijay Shekhar Sharma Youngest Indian billionaire, Alkem Chairman 92-year-old Samprada Singh Oldest
"One of the biggest beneficiaries of India's demonetisation, Paytm has notched up 250 million registered users and 7 million transactions daily. Sharma owns 16 per cent of Paytm, which is now valued at USD 9.4 billion," Forbes said.