Opening page from email link doesn't populate form with data

Question

On performing some action(approve/reject a request) an email is generated with a link in it. On clicking the link, a SharePoint QA page opens that contains a form. All that works well!

 

My issue is, that form is not populated with data that were entered during form submission.

 

How do I populate that form with data?

 

I am also using QueryString and the following is the URL:

 

https ://abc.xyz.com/sites/def/Pages/tests.aspx?uID=56 (just to show the QueryString)

 

The entire thing works well when I move from one page to another! Data is not being populated only when I open my page from the EMAIL, I just get a blank form.

 

I am sorry that I cannot post the code here since it is too huge and there are series of methods that use each other. 

 

Hoping I get some help.. Thank you :)