>>Comparing IIT/IIM entrance exams to caste system is a very cheap shot.
Why?
Caste system survived because an exclusivity principle was employed to keep the lower caste's out of systems which could benefit them on the longer run like education, employment, religious institutions.
Why?
Caste system survived because an exclusivity principle was employed to keep the lower caste's out of systems which could benefit them on the longer run like education, employment, religious institutions.