( 1 ) THE petitioners, who are working as Assistant Professors in I. I. T, Hauz Khas, New Delhi, have filed this writ petition seeking writ, order or direction in the nature of certiorari for quashing the pay revision order dated the 19th April 1990 as communicated by the Department of Education, Ministry of Human Resource Development, Government of India and the resolution of the Board of Governors dated the 17th May 1990 and for requiring the respondents to reframe the Cadre structure of the teaching staff of the I. I. T. and to remove the discrimination which the impugned order has created against the petitioners. A writ of mandamus is also prayed for an order for placing the petitioners, who were earlier in the middle rung as Assistant Professors, in the old Cadre and they be considered to be Associate Professors in the new scheme with effect from January 1, 1986 or from the date of joining after January 1986. Another writ is sought for quashing the selections made to the post of Associate Professors under the new schemes on various grounds.

( 2 ). The facts relevant for the disposal of this writ petition, in brief, are that prior to issuance of the impugned ord