For January series, the highest call open interest is at 700 strikes with 17,28,900 OI. On the put side, the highest put open interest is at 650 strikes with 25,50,000 OI. Today, the highest addition in the open interest was seen at 770 calls of January expiry with 11,74,700 OI while on the put side, 650 puts have seen the highest addition in the open interest with 25,50,000 OI.