Some important points to keep in mind:
1) Contracts expires at 12:30 pm, at RBI (FBIL) reference rate, also known as final settlement price.
2) Cash settled Contracts. Expires like any other other indices (Nifty/Bank Nifty/Sensex).
No delivery on auto-expiry/No penalty if contracts expire ITM.
3) Final settlement price is known by 1:30/1.45 pm, and is made available on exchange website.
The best way to figure out likely final settlement price (RBI reference rate) is weekly futures price. Check for futures contract expiring today.
Normally, we see final settlement price within +/- 0.0050p variation from the weekly futures price trading between 11:30 am to 12:30 pm.
4) In case of options, one tick (0.0025p) covers the cost.
Happy Trading !!!
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