What is the difference in grading system at IIT Bombay, Delhi, Kanpur?

All the 3 IITs, IIT Kanpur, IIT Bombay and IIT Delhi, follow the relative grading. Under this, your grades are calculated after your GPA is generated with respect to the highest scorer's marks. This system is quite similar to that in the US except that the parameters considered while calculating grades are way different.

Grades are calculated by giving weightage to such parameters 

• Tests
• Assignments
• Projects
• Quizzes
• Group projects
• Class participation 

IIT B and IIT D grading system looks like this

Anything below this is considered Fail.

IIT Kanpur has an even grading system which looks like this 

Contrastingly, AP in IIT Bombay means excellent performance where AP in IIT Kanpur means Academic Probation.