Hello there. Hope you are doing good. I would like to tell you that if you want to get admission in top colleges of  MCA such as NITs, HCU, BHU etc. then it is mandatory to appear for entrance exam i.e NIMCET or else CET exams of respective colleges/universities. However, if you want to get admission into private universities, then there are few universities which offers admission on the basis of marks secured in graduation and Personal Interview.

I hope you found this answer helpful. Good luck for your future.