category product grid column on home page Front-End

[gauravjain1]

I want to display products categorywise on home page , ths time only carausal is displaying

i want

1. How to display products in Gridview like Category pages on Home Page
2. What if i want display selected product on home page
3. How i can display all categories in Gridview on home

i wan tto modify full home like amazon and all