Nifty Dec 5300 call added 10.08 lakh shares in OI, up 53.44 % and 5400 call added 10.17 lakh shares in OI, up 50.78%. On the put side nifty Dec 5200 put added 12.55 lakh shares in OI, up 99.08% and 5100 put added 13.58 lakh in OI, up 46.20%. The put-call ratio of stock option decreased from 0.48 to 0.45 while put-call ratio of index option increased from 1.07 to 1.31. On the whole the put call ratio was at 1.21.