hi shruthinambiar
If you want to add the embedded slider then you need custom coding for this. we have implemented our theme this way. We support only the theme issue.
The code is inside attitude-> library -> structure -> header-extension.php
From here you can remove it but we recommened not to change the code. Because if you change the code then while updating to our new version all your customization code will be lost.
So better make child theme and first unhook the function first. And then you can add plugin and use the code to display the slider.
If you couldnot do this then better hire a developer to fix the issue
Regards
Sunil