02 August 2013
See,it depends upon your own caliber.If you have started preparation or have some concrete commitment then you can easily go for nov13. If you have gone through all the subjects atleast once and are clear with the concepts then go both nov13 only.You have already made a yr's gap.leaving this attempt would amount to additional gap of almost a yr.Even if you are not sure for both groups then atleast go for one group.