What salary will I get after doing B.Tech CS and MS in USA? I also have an MBA degree.

It depends on the field you are going to choose. As an MBA student, you will be getting between 6-12LPA. If you want to get into IT, It will be 4- 8LPA on an average.

It's hard to tell because nowadays there is a recession going, so I will suggest you to apply for CSR Diploma. This will improve your chances to get a job into the big organisation.