Groww has overtaken Zerodha to become India's largest stockbroker with a substantial 66.3 lakh active clients, surpassing Zerodha's 64.8 lakh, as per NSE data. In March 2021, Zerodha had 34 lakh active customers while Groww had only 7.8 lakh, as per a report by Moneycontrol. Nithin Kamath's online stock broking platform, disclosed a 39 per cent increase in profit after …