Hi Aspirant! Masters in Business Administration or MBA is a 2 year post graduation course. 

The main specializations in an MBA are : accounting, finance, marketing, human resources, operations, and statistics.

You'll be surprised to know that , the best MBA colleges not only include the Indian Institutes of Management (IIMs) but also the other affiliated universities and private MBA colleges which are doing better than many IIMs.   

(CAT)Common Admission Test is the first thing that needs to be considered while thinking of MBA entrance exams. Most B-Schools in India accept CAT scores for admission. XAT, MAT and CMAT are next on the list after CAT. Then comes SNAP, NMAT, GMAT and so on. In a nutshell, you should take about two to three exams in an academic season.

For more details, kindly visit https://bschool.careers360.com/

I hope this information has helped you:)