Mahesh, admission to B.A Defense and Strategies depends on the Institution or College that you are enquiring about. Few Colleges conduct admissions based on Entrance exam conducted at University level. In these cases, 50% and above will be enough because you will be selected based on the marks scored in the entrance examination. But few Institutions might conduct admissions based on merit scored in your 12th. Then you might need more than 60% based on your Category.