It said the power of judicial review was about rehearing the matter afresh, and added that it should be exercised with extreme care and caution.
"Only in exceptional circumstances, can it be done and the review is also not an appeal in disguise," a division bench of Justice N Paul Vasanthakumar and Justice M Sathyanarayanan said rejecting the plea of a batch of nursing candidates.
For several decades, recruitment of nurses for government medical facilities was being done only from among those who pass out of government-run nursing institutions, as per Madras Medical Code.
In February 2011, weeks ahead of the Assembly elections, the then government had initiated steps to recruit 1,861 nurses for government hospitals and public health centres. However, by the time they completed the first batch of 969 candidates, and started certificate verification for the remaining 892 candidates, polls were notified.
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It said recruitment, on the basis of a competitive examination, would be done by the Medical Services Recruitment Board.
Aggrieved by the order, trained nurses who could not be recruited due to the intervention of assembly polls in 2011, moved the court assailing the revised policy.
Though a judge allowed their petitions, in January this year a division bench upheld the new policy of the government.