Dear Ragav, as you haven't mentioned any course in particular, we shall give you generic information. You should have scored a minimum aggregate of 50% in the highest qualifying examination that is relevant for the entrance exam you are applying for and also you should pass each subject individually. So there is no pass percentage for each subject per se. 

Hi R.Raghav,

It all depends on your streams. Mostly, most of the private and govt. colleges either have entrance exam or direct entry if you score well in your board exam.

lets say if you get above 95 percentage, you can get  a good college in Delhi University.

Wish you good luck.