I was away for an year and had not received any property tax notice. So was not sure how to pay the property tax at all since there was no base document with amount etc.
So, I went to the GHMC office in Serilingampally and met a person in Revenue department. The process is quite straight forward. All you need is the TPIN of your house. You can get this from your old notices or receipts of property tax (even if the notice is not in your name).
You simply have to give them the TPIN and they will tell you the amount with penalty, if any. Pay it by cash or by cheque and your receipt is handed over to you then and there. Easy!
Apparently, this can also be done at any e-Seva counter. But, I have not tried it yet.