Hello student some of the best MBA colleges in India are as follows.
1)IIM Ahmedabad
2)IIM Banglore
3)IIM Calcutta
4)XLRI jamshedpur
5)IIM indore.

You can also refer the link mentioned below for more information
https://bschool.careers360.com/colleges/ranking

You need to appear for cat entrance exam to take admission in best MBA colleges.
Eligibility criteria :-CAT 2019 EligibilityCriteria A candidate is eligible to appear in cat 2019 if he/she holds a Bachelor's Degree with at least 50% marks or equivalent CGPA. The candidates belonging to Scheduled Caste (SC), Scheduled Tribe (ST) and Differently Abled (DA) categories, need at least 45% marks.

Feel free to comment if you have any doubt
Good luck