Zerodha, co-founded by Nithin and Nikhil Kamath, is one of India's top discount brokers, known for its innovative approach. Despite their success, Nithin Kamath sees no need for advertising. He values not having to view customers as mere acquisition costs. Zerodha’s client base grew by 1.5% to 7.4 million, demonstrating strong performance without ads. Kamath appreciates staying "spam-free" and not pushing unnecessary products like life insurance as investments. Zerodha's customer assets under management have grown significantly, showcasing trust and credibility in the market.