how to apply B1 visa for grandparents

Hi all,

I am working on h1b visa. i am planing to get my grandparents to USA. Can i sponsor b1 visa for my grandparents? how to apply B1 visa for grandparents.

It is B2 visa (not B1). Immihelp has quite good amount of info:

Refer to the very first question.

Then go ahead and read