Hello, 

You can for MBA after B. Sc without any specialization as eligibility criteria for MBA in most of the top universities is passing with 50% marks in your Bachelor's degree and you may have to qualify some test, it may vary with the university you choose.

The main factor that you may consider to pursue the course in all the fields available for MBA is your interest. 

The below given link might help with your doubts :

https://www.careers360.com/list-of-management-courses-in-india

I hope you get to know everything. 

Have a bright future!!!