FREE Equity Delivery and MF
Flat ₹20/trade Intra-day/F&O
Since STT is applied to the value of the transaction and the rates are defined by the Government of India, there is no way you can reduce your STT charges. The only thing to keep in mind is if you are an option trader, then square off your position before expiry. That way you will not end up paying STT on the whole contract value for that day.
Zerodha Trade@20