The document summarizes data on changes in open interest (OI) for Nifty options and futures contracts. It notes that the maximum OI for Nifty calls was at the 8300 strike price while maximum OI for puts was at 8000. The Nifty December 2016 futures contract closed at 7995, a premium of 9.25 points over the spot closing. OI declined the most for the 8000 call and put options contracts. Total OI for Nifty December futures increased by 0.70 lakh units to 13.60 lakh units. OI declined the most for Vedanta and Bharat Financial Inclusion stock futures contracts.