Nifty Dec 4900 call added 3.09 lakh shares in OI, up 6.79% and 5000 call added 2.33 lakh shares in OI, up 3.64%. On the put side nifty Dec 4800 put added 0.66 lakh shares in OI, up 1.13% and 4700 put added 3.30 lakh in OI, up 3.92%. The put-call ratio of stock option decreased from 0.65to 0.54 while put-call ratio of index option increased from 0.86 to 0.91. On the whole the put call ratio was at 0.89.