What should be the cut-off to take admission in MBA as a general category?

A good college requires 90%+ at least. If you have 90%+ marks in both class 10th and 12th then you would need around 85%+. So, an average is calculated with your overall marks and then that decides who will call you.

To take admission in a good college with good placements, you should score above 90%ile.

Above 98%ile will get you a call from all the IIMs, but honestly, at 90%ile and more, you can get a decent college for MBA.