Y Combinator backed Indian Fintech Investment App Groww Secures $21.4 Million via Series B  Crowdfund Insider. : Groww, an investment app that aims to focus on providing services to Indian millennials, has reportedly secured $21.4 million in capital through a Series B funding round – which was led by US-based VC firm Ribbit Capital. Existing investors Sequoia India and Y Combinator also took part in the round. Groww, which was launched about three years back, is now offering commission-free investing in mutual funds through its official website. The app is available for Android and IOS as well.