MyQuals: 10th - 60%, 12th 61.5%

Now my academics prior to College are bad, and doesn't really scream future IIM student but now that I'm in college I'm doing better.

Now in my first year of B.Com my grades have improved a lot. I have been in the top 10%le of the class.

While like every CAT aspirant I'm aiming for IIM ABC, I would be more than happy with the new IIM's like Shillong, Trichy, Rohtak etc.

Can I achieve this if i start preparing now? What Percentile should i aim for.