Hello Aspirant!

You can write some entrance exams for MBA admission in colleges such as XAT, MAT, CMAT, ATMA. These will help you get good college even with low marks in UG. And if you belong to any reserved category, then you must note that there are many colleges which have reserved seats for reserved category students accepting below 50% in UG such as VIT, IIMs, National institute of industrial engineering, IITs , management development institute, Rajiv Gandhi indian institute of management, anna university etc.

Hope it helps, thankyou!