Zerodha Co-founder Nithin Kamath revealed he has invested just ₹10 lakh in the brokerage platform so far. He said ₹2.5 lakh was used for website, ₹5 lakh for office interiors and ₹2.5 lakh for miscellaneous expenses. "We came from extremely middle-class background and had no rich uncles. Dad was a bank manager and mother taught (musical instrument) Veena," he said.