Comment on BTST/ATST( Buy/Acquire Today Sell tomorrow)
Once you keep any position overnight, it will be considered as a delivery trade and hence STT would be as per that. So for eg, if you bought 100 shares of Reliance at Rs 1000( 1lk of shares) and held overnight and sold it using BTST. You have to pay STT of 0.1%(100) while buying and 0.1%(100) while selling.