As you are changing your majors I would recommend you to write a very good SOP stating why the change in majors although it is very common for students to do MBA after BE/BTech. You will need to give GMAT to study abroad for a business school. You need to make sure you have the required funds. MBA Abroad can cost you 80-90 Lakhs so you need to make sure you have the funds for it. You can consider taking an education loan in case you can't pay for it.

According to you, you are pursuing your bachelors in computer science engineering and you want to some sort of MBA thing ?

Right ?

Can you elaborate yourself more, what actually you want to do from USA, so that I can guide you for application and applying process .