Link formation in a third-party .aspx website

I want to understand what link is fo开发者_如何学Pythonrmed when I click print button on http://recruitment.cdacmohali.in/TETPB/Regprintagain.aspx

Sample data is 2011360220 and 25/05/1980

I want to integrate it with my website and get the url it it making so that in the url I can pass the registration number and dob as variable and see the complete results.

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I think it is using Session. You can not pass the data by QueryString