To appear for any MBA entrance exam you should have at least 50% marks in your graduation. Admission to MBA College depends upon college to college. Every college has different admission parameters. There are also some colleges they only see MAT or other entrance test score with your graduation degree marks (which should not be less than 50%). You may contact MBA colleges individually for information on admission procedure.
There are many specialisations in MBA like finance, marketing, retails, human resources, IT & operations. All the fields have different value and scope; you can choose any one of the fields according to your interest.
Click here to know more about MBA specialisations and types of MBA
To know more about the career of an MBA graduate, click here