ZERODHA The name itself indicating zero which means zero brokerage charges for CASH N CARRY product(taxes are charged).20/- flat brokerage charges collected for INTRADAY trading(20/- per buy n 20/- per sell).ZERODHA gives exposure to 6 to11 times it is very useful for traders especially intraday traders.DEMAT charges also very low 300/- per year(separate for EQUITY N COMMODITY).When you visit zerodha site you find ZERODHA BROKERAGE CALCULATOR where you can calculate how taxes are charged for amount transactioned.