i got 50% in b.b.a and want to do m.b.a from u.s.a from any nice university what should i do????

you have to give English proficiency test after that you can apply you also have to contact to any good consultant they can tell you about better university or college ,

there are many good universities in USA please check the ranking and affordability to pursue MBA Programme and then apply to their admission center there are different criterion for different university. Each University website can give you the answer