Change in Professional tax in Tamilnadu

I have a circular issued by Chennai corporation dated 10.08.09 notfiying that the PT rates have been revised (the PT for highest slab is now Rs.1,095/- instead of Rs.810).

Are the rates revised only for Chennai city? My office jurisdiction is under Thoraipakkam panchayat (Chennai rural). So, at wat rate should I pay the Professional tax?

It will be great help to me if you answer my question.