regulations, if a person possess 9th class pass with 6 years of experience in O & M Cadre, he would be eligible for promotion to the post of Line Inspector. The petitioner had completed more than 6 years of service and he is eligible for promotion of Line Inspector. The second respondent, after conducting of D.P.C. on 12.03.2003, issued promotion orders to the petitioner on the same day. The posting orders were issued on 13.03.2003 and he took charge as Line Inspector and now he is working as such. Further, it is the case of the petitioner the Government had issued G.O.Ms.No.5, dated 14.02.2003 and G.O.Ms.No.21, dated 18.03.2003 laying guidelines for promotion of S.C. and S.T. candidates and the same have come into force with effect from 14.02.2003. In order to adopt the said guidelines of the both G.Os, the respondent Corporation has issued T.O.O.(GM(IR)-Per) Ms.No.320, dated 17.03.2003 as well as T.O.O. (GM (IR)-Per) Ms.No.324, dated 23.03.2003 respectively and the above said G.O.s were adopted with effect from 17.03.2003, but not as on the date of his promotion i.e. 12.03.2003. Both the orders i.e. T.O.O.Ms.No.324, and T.O.O.Ms.No.320 say that they have not any retrospective effect. Further, it is the case of the petitioner that the first respondent had issued orders directing the third respondent herein to take necessary steps following the guidelines issued in G.O.Ms.No.21, dated 18.03.2003 in the matter of giving promotions after the date of 14.02.2003 as regards the rule of reservation. The third respondent effected promotions on 28.02.2003 to several candidates from the post of Line Inspector to Senior Line Inspector without implementing the guidelines of G.O.Ms.No.5, dated 14.02.2003. The second respondent issued impugned proceedings dated 19.07.2003 calling for explanation from the petitioner as to why the petitioner should not be reverted to the post of Line Man from the Line Inspector. But, without waiting for petitioner’s reply, the second respondent prepared a new panel in favour of the S.C. and S.T. candidates. Challenging the same, the present writ petition has been filed.