While we’re working on providing you with a rough estimate of the cost, it’s difficult to provide you with the exact cost of the trade. It’s hard because the rates of STT, Stamp duty differs depending on whether your trade is Intraday/Delivery, so it’s essential to determine the nature of a trade before appropriate charges can be levied on it. While you may argue that there are specific product types that denote the type of trade, the truth is that when you buy and sell stock under CNC (CNC is the product code for delivery) on the same day, it’s still considered an Intraday trade.
Also, there are cases where the trade type could change from Intraday to Delivery depending on additional trades executed. Assume, you’ve taken a short position in MIS, and the charges for Intraday and computed and shown. If you change the product code from MIS to CNC (assuming you are holding the stock in your demat), the computation has to now change, doing all this real-time is a little difficult.