In case of derivatives, the settlement of funds happens on the next trading day i.e. T+1, hence your fund balance will not reflect the profits made by trading in F&O until they are settled by the exchange. Further, if the T+1 day is a settlement holiday, the intraday F&O profits will be available on the next trading day.
When both cash and collateral margins are available, which one is utilized first? What is the order of utilization?
What is the margin blocking percentage during the end-of-expiry week for physical settlement of stock option contracts?
Can I do intraday trading in stock options?
When does expiry take place for Nifty, Bank Nifty, Sensex, Bankex, and stock option contracts?