Firstly, this is not a BTST(Buy Today Sell Tomorrow) trade. This would be a BTST trade if you’d bought it on 25 July and sold it on 26 July.
Eitherway, when you sell shares from your Holdings, it will show up as a CNC sell position in your Positions tab. This indicates the price and number of shares sold from your Holdings. You can ignore the fluctuating pnl as this will not provide any additional info to you since you’ve already sold the shares.