How much salary will I get if I do B.Tech CS and MBA?

It depends on the college from which you want to pursue B.Tech.

Hello, It depends upon a lot of factors like: from which college you are pursuing these degrees, the companies and the job profiles, your skills, and the interview performance. So, it may be as low as Rs 3-4 Lacs to Rs 25-30 Lacs or maybe even more.