How to verify the authenticity of a payorder!

I want to sell my plots in islamabad/pindi for that i want to know how the expert sellers verify the payorder involved in the transaction …

Get the payorder’s photo copy and go to that banks branch and get it verified or if the buyer is from the same city just request, if the payorder can be made while your present in that bank

Call on the Bank UAN number mentioned on the Pay Order , Verify it from Customer Services agent by giving him Credentials on Pay Order .

Can be verified by the branch it is made from, you can call them/visit them.

Plus, if you are so concerned, you can ask the other party for online transfer of money.