BCA

Nikhil, you can go for MBA. MBA offers great career opportunities.
MBA has a broader scope having to fulfill the responsibilities at the managerial levels. If you have the gift of doing well as a team member and leader and manage people well, an MBA might be a better option for you.
There are different ways of admission in MBA. Some institutes prefer CAT/XAT/ MAT scores only for admission to MBA course. And to appear for CAT/XAT/MAT etc  student needs to have 50% in graduation. But eligibility criteria varies for various Management Institutes or Universities, they can take different %age in graduation along with CAT/ MAT/ XAT scores. 
Another way of admission is internal tests or admission criteria of individual Management Institutes or Universities.
You can check the websites of some universities for more details.
Good luck.