Hi I would say rather drop sehwag because i am not seeing him coming in form now.he is so low in his confidence.And anyways no point including him because he can also bowl off spin because as such we have many spinning options.If pitch is really conducive to spin we will be having both kumble and harbhajan and in case we need third there are too many options in form of sachin.yuvraj.so only if sehwag is in batting form purely he is to be selected.Rather i would say pathans batting abilities will be more than handy.They would be alomst equal to sehwags batting abilities in recent form infact a touch more than that.So it wont be harbhajan or pathan.Infact we should select both and drop sehwag to start with.Then depending on form changes can be made.