The Qty multiplier is 75 for 1 lot or 1 contract
Tick size is 0.05
Tick size 0.05*75 = 3.75 INR or 0.052 USD
NIFTY index current value approx 10900
Total contract value 1 lot = 75*10900 = 8,17,500 INR or 11,412 USD
Overnight Margin by NSE exchange for 1 Lot= 10100 INR or 1397 USD
Intraday...