Hello,
After passing the CAT examination, you can opt for various kinds of colleges. Among the top colleges in India, the lowest fee is of Faculty of Management Studies, New Delhi. It will cost you rupees 20, 000 for the 2 year course. The highest is of IIM, Ahmedabad, which will cost you 21 lakhs for the 2 year course.
You can find costs of other top institutes here-
https://bschool.careers360.com/articles/mba-fee-know-how-much-your-mba-will-cost-in-top-b-schools