The index option buyer gains leverage as the premium paid relative to the contract value is small. The price of a single equity index option contract can be determined by multiplying the What are Binary Options and How to Trade Them? A Call Option gives the buyer a right to buy a specified quantity of an underlying index at a pre-decided price. For this privilege, the buyer of the Call Option pays Getting Started · Regulatory Framework · Opening an Account · How to connect Instrument Type, Underlying, Expiry Date, Option Type, Strike Price, Prev Close Index Options, NIFTY, 01APR2020, CE, 8,600.00, 126.50, 90.00, 90.00, 29.50 Index Options, NIFTY, 01APR2020, PE, 8,500.00, 98.75, 89.90, 113.50, 79.55