Hi dear,

This is depend on two things

1. Which college you want to take admission

2. Which category you belong.

If you want to take admission in NITs your overall percentage should be 75 or under top 20 percentile if you belong from general category. Many private college demands 60 percent in PCM and many 45 percent in PCM. If you belong from SC or ST many college accepts 45 percent in PCM.

Hope it helps