Pointing out that the required number of candidates under 20 per cent for Tamil medium is not available for selection as the reservation was applied at the final stage, the bench said, “Without taking note of the above non-selection of candidates under 20 per cent reservation, the TNUSRB continues with the same pattern. The TNUSRB should have adopted the proven method followed by the Tamil Nadu Public Service Commission, which provides reservation at every stage.”