Hi Madhu,

The issue as mentioned by you should be the result of a technical glitch or snag on the GATE website's part provided that all your credentials and proceedings are accurate on your part. The other alternative could be that you have mentioned any details incorrectly or your qualifications don't satisfy the eligibility criteria for the exam.

If it's the first case then kindly mail the authorities directly stating your issue and request for a expedited solution.

BEST WISHES!