Typical brokerage is .3% for delivery and .03% for day trading. This is added to your buy/sell rate. Transaction and turnover Taxes are calculated post this. Over and above this, you need to pay income tax quarterly and adjust losses to gains in your annual returns.
High net worth individuals get better rates. For ex Axis bank has a scheme of .15% and .015% for a prepaid scheme. For eg you can prepay brokerage of ~1.25L for a total delivery turnover of 7Crores or 70Crores in day trading. Beyond this they charge .18% and .018% for delivery/day respectively.