Hello @haseebkamboh
Kindly go to this file that is responsible for the Header part.
packages >> Webkul >> Shop >> src >> Resources >> views >> components >> layouts >> header >> desktop >> bottom.blade.php
homepage.png
For the category carousel go to this file
packages >> Webkul >> Shop >> src >> Resources >> views >> components >> categories >> carousel.blade.php
categoryCarousel.png
Make your customization here in these files.
Thanks & Regards..!!