I am working on a ticket system, having the following requirement:
The home page is divided into two sections:
Sec-1. Some filter options are shown here.(like closed-tic
This is somewhat of a simple answer, but what you want to look at is using a hidden iframe method for your AJAX, as opposed to XHR (XMLHttpRequest Object). This will allow for the browser to maintain the history, so your back buttons will continue to work.
Some more: http://ajaxpatterns.org/IFrame_Call