MBA Admission Process

Candidates interested in the NUS MBA must apply directly to the NUS Business School Graduate Studies Office and not through education agents. To start the application, you need to indicate at least one MBA programme as Preference 1 under the Preference section. Here is the link for admission procedure-
http://mba.nus.edu/en/admissions/admission-process/.

Shortlisted candidates will be called for group discussion and personal interview based on rank or score in CAT 2015 or Written Test conducted by the Department of Business
Administration, Assam University.
Candidates are selected based on score or rank in CAT or Written Test conducted by the Department, marks in graduation and performance in group discussion and personal interview as per the following weightage:
Academic record- 30%, CAT percentile or written test-20%, Group discussion-20% and Personal interview-30%.
Good Luck!

Visit the link and get your query loved-
http://www.aus.ac.in/notice/Assam-university-online-admission-system-for-m-b-a/.

It depend on college type. But, you can direct approach to college for admission in MBA.

Kindly mention the course name for which you wish to seek information for. Also, kindly mention your question in details and add location preference (if relevant).

MBA is a Masters course. So, it is based upon your Bachelor's degree. You cannot do MBA on the basis of class 12th marks (on the basis of this you can do BBA). For MBA, your Bachelor's marks will be taken into consideration.