Alakh Pandey-led edtech unicorn PhysicsWallah makes confidential filing of draft papers for Rs 4,600-crore IPO Top edtech unicorn PhysicsWallah has filed draft papers through the confidential pre-filing route to raise Rs 4,600 crore via an initial public offer, multiple industry sources in the know told Moneycontrol.PhysicsWallah is backed by the likes of Westbridge Capital, GSV Ventures, Lightspeed Venture Partners and Hornbill Capital. If the listing plans fructify, the firm could potentially ...