She started off her career as an investment banker. But Indian American Shivani Siroya knew there was a large number of the world’s population that was financially underserved and she wanted to change that. In 2011, she launched Tala, a mobile lending app that gives microloans to small business owners across emerging markets. Her work has been changing lives and she featured in Fortune’s 40 Under 40 list.

{} [+]