Hi Pankaj - many thanks for getting back to me.
I have unblocked and white listed your IP address.
I have assigned beeze2 template (I don't have protostar) to a front end page, but I am still unable to edit the article when I am logged in as a super user.
I used to apply geographic blocking through admintools, but this facility has been removed permanently by Akeeba, so I don't see how I can be blocking you...
If you still have difficulty in logging in I will temporarily disable admintools.
Thank you again for your help,
Best wishes
Ian