Sir, i didn't had maths as my subject, how should i prepare for it and from where?

I passed 10th and 12th from commerce stream, 90% and 93% respectively. i want to do m.b.a., but maths was not my subject therefore i'll have to prepare for it. please guide me about how can i prepare for it. am doing B.Com from lucknow university and i have 2 years time to prepare for cat.