The Tamil Nadu government has moved the Supreme Court challenging the validity of the National Eligibility cum Entrance Examination (NEET) for admissions in medical courses in colleges across the nation, alleging that the single window common test is violative of the principle of federalism.

The NEET is a pre-medical entrance test for admissions in undergraduate medical courses such as MBBS and BDS and also for post-graduate courses in government and private medical colleges.