MUMBAI -- Vijay Shekhar Sharma is used to dealing with skeptics. The 39-year-old founder of Paytm, India's biggest mobile payments business, was repeatedly turned away when he first sought backing for his startup.
"You are a great technology person but you have never done a consumer (business)," he was told. In the end, he managed to convince a group of investors who gave him $1 million and six months to prove himself.
