Display categorywise product on home page - zencart

Hi all,

I'm working on a shop that I'd like to customize the appearance of. Currently, the front page displays a box with all the products from several categories, in random order.

I'd like to change that to display four (or some small number of) categories. (The most recent? The most popular?)
Furthermore, each category should display some number of products.

My main requirement is to have the products on the front page split up by category. What is the best way to do this?

present website : https://www.indianshaadishop.com

display in: category 1
product1 | product2 | product 3

            category 2
            product1 | product2 | product 3

            category 3
            product1 | product2 | product 3

on home page.
how do i do this .Please friends suggest me.

regards,
nagaraja kharvi