Hello

Unfortunately many mba colleges takes admission with aggregate 50 percent marks in graduation and exams like CAT MAT.as per your category there is hardly any difference between general and obc category.even CAT eligibility criteria is atleast 50 percent in graduation for both general and obc category.

You can do mba from private university.some of the university offers admission below 50 percent like poornima university,CURAJ,NIMS university in rajasthan.

Here is the list of some private university provided.you can check for admission process

https://bschool.careers360.com/colleges/list-of-mba-colleges-in-rajasthan