Step 1: click here,you will observe screen like shown below.
you should create new GPAT account.For this you shoud click on"For new user GPAT account" as shown in above.
step 2:The below sceern will appear in your window.Fill the form carefully and register.By completing this step u will get user name and password which is created by you.
step 3:After submission of form,this bank challen will appear on screen.The amount should be paid in the bank along with this form.The bank staff will give SOL ID, and TRANSACTION NO.Store them.
step 4: login with your username and password.The below screen will appear for updating the payment details.
step 5:update the payment details and make print out of it.paste the photograph and along with this send the original copy of bank challan to the GPAT office.