Most technical education institutions in India can be classified into 2 categories:
- Independent
- Affiliated to the university
The independent institutions like the IITs have their own grading system (relative grading), where students are assigned a grade depending on their performance relative to that of the rest of the class. So if most of the class gets 5/100 , the highest scorer in the class who gets 10/100 is assigned an A grade.
Most engineering colleges are affiliated with the university in their area and follow the standard marking system based on marks scored, followed by universities in India