WestBridge Capital-backed edtech platform PhysicsWallah has filed an updated draft prospectus with SEBI to raise ₹3,820 crore via IPO. It plans to raise ₹3,100 crore via issuance of new shares, while the promoters, Alakh Pandey and Prateek Boob, may sell ₹720 crore via offer-for-sale. Promoters currently hold 82.3% stake in PhysicsWallah, with Alakh and Prateek having 40.35% shareholding each.