Currency trading settlement

When we trade in currency future in nse like USDINR how is the settlement of it do actual trading happens in forex market to buy or sell as per lot size and get profit after trade complete?

The spot for Currency F&O (USDINR, EURINR, GBPINR, JPYINR) is the RBI Refrence Rate. The final settlement of Currency F&O happens according to this rate, which RBI announces on working days around 1:30 PM, you can check it on FBIL website.

You can learn more on Currency F&O on Varsity: