In general, for most of the institute, the eligibility criteria for the course of MBA suggests, that the student needs to be a graduate in any stream in order to be eligible for the course of MBA. So if you have completed your BBA degree course and if you have scored at least 55-60% marks in your UG course, then you are eligible for the course of MBA.

Apart from this, you need to qualify the examination of MAT, XAT, CMAT, GMAT and NMAT.

Now for the course of MBA IT, the eligibility for the field differs from college to college. And in general, in most of the colleges, the student need to be a graduate in any of the field of IT such as BCA , B.Tech , and B.Sc. etc. So it may not be possible to get admission to the course of MBA in IT , after BBA course in some of the college. I would suggest you to check the eligibility criteria of the college you want to take admission in and check whether that college allows or not.

For more information regarding MBA IT consider the link below:

https://www.careers360.com/courses/mba-in-it-information-technology

For more information regarding MBA consider the link below:

https://www.careers360.com/courses/mba-master-of-business-administration

I hope this helps. Wish you a great eve!