Students threatening teachers to falling ceiling fans: PhysicsWallah DRHP reveals 5 unique threats to its business by ET Markets | September 10, 2025 1:04 pm | Indian Stocks, Market, News PhysicsWallah, an Indian ed-tech unicorn, is launching a Rs 3,820 crore IPO amidst industry scrutiny. While peers face struggles, PhysicsWallah, backed by WestBridge and Hornbill Capital, reports revenue growth and narrowed losses.