This is advanced customization and unfortunately it's outside scope of regular support. I can only point you file for customisation, you need to customize it by yourself or hire customisation team.

File shortcodes/shortcodes.php and find compare function there

Hello

i need to customize the compare url

current url - http://sign180.digit.in/indexphp/mobile-comparision/?compareids=5929,5937

I need - http://sign180.digit.in/{{category-name}}/{{product-name1}}{{product-name2}}.html?pid={{id1}}-{{id2}}

Kindly suggest