I have a zerodha account last 6 months and I am fully satisfied with zerodha services
zerodha allows their clints to buy and sel stocks, futures and options such as equity, currency and commodity
zerodha electrronic trading platforms are provided free of cost to the clints zerodha kite web based platform zerodha pi desktop platform zerodha mobile application
zerodha have special features like cover order bracket order and trailing stop loss
zerodha provide also brokerage / margin calculators reporting tool Q or quant
zerodha charge lowest brokerage
and zero brokerage on equity cash
overall zerodha is best broker in india present time I recomend to everyone use zerodha for stock market