The bench of justices Ranjan Gogoi and R F Nariman issued show cause notice to the Secretary of the Department of Personal and Training (DoPT). It, however, exempted the officer from personal appearance before the court.
The bench was hearing the plea filed by NGO National Federation for Blind through senior advocate S K Rungta.
The NGO has said that DoPT has issued an office memorandum for providing 3 per cent reservation to persons with disabilities and said the posts have to be computed against the total number of vacancies in the cadre strength to be filled up through direct recruitment in group A and B posts.
The NGO alleged that other clauses, which were also to be amended to comply with the court's directions, have not been changed "intentionally and deliberately".
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Most of the clauses relate to quantum of reservation and maintenance of roster etc, it said.
It said the DoPT also did not take steps for filling up vacancies, to be calculated against the reservation for persons with disabilities, adopting the manner of computation in terms of court's directions within a period of three months.
The NGO has also sought direction to the DoPT to ensure "strict and timely compliance" of court's earlier order to revive a committee for undertaking a centralised special recruitment drive for clearing up the backlog reserved vacancies for such persons.