Salman Khan, Amitabh Bachchan to Alia Bhatt, Bollywood celebs give start-ups a big boost

Start-ups have found a new address to mine a whole new group of investors for funds. No, they are not private equity investors or venture capitalists but Bollywood stars! And what is more, they are no longer just brand ambassadors, they are playing a big role in  actually funding the ideas of entrepreneurs. From Salman Khan, Amitabh Bachchan to Shilpa Shetty, here are five celebrity investors who have invested in start-ups: