Nifty May 5000 call added 6.81 lakh shares in OI and 5100 call added 9.17 lakh shares in OI. On the put side nifty May 4900 put added 6.59 lakh shares in OI and 4800 put added 3.33 lakh in OI. The put-call ratio of stock option decreased from 0.55to 0.51 while put-call ratio of index option increased from 1.06 to 1.10 . On the whole the put call ratio was at 1.06.