Can we take direct admission to TOP MBA colleges without writing entrance exam? If possible how?

To get into top institutions, you have to clear entrance procedure whether it be marks or exam, but private colleges may give you admission by donation means maybe. You have to contact college and see whether they give admission in management quota or not.

Please go through with the link of SPSU Udaipur" https://www.shiksha.com/mba/course/master-of-business-administration-sir-padampat-singhania-university-udaipur-190192 which will let you know the necessary eligibility criteria for admission to MBA college.