Hey!
To get admissiom in MBA , your 10th and 12th marks do not play any role. But your marks in graduation plays a role in fulfilling the eligibility criteria for MBA. The eligibility criteria for MBA is that the student must have a minimum of 50% in graduation from a recognised University .Since your score is  more than the minimum required qualified percentage you are eligible for MBA in top colleges but to get a seat in MBA in top colleges you have to give some entrance exam like cat GMAT . Pr some  colleges or universities also have their own entrance exams so you can get into one by giving the concerned exam.
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Dear student, as you have secured very low marks in your class 12 exam and neither much higher in class 10 and graduation to compensate it, you won't be definitely getting any of the top most MBA colleges in India. You need to secure very high in CAT exam to get some of the good colleges in terms of placement for pursuing MBA.