( 1 ) THE present writ petition is directed against the revised seniority lists dated 23rd April, 1977 and 16th July, 1979 (Annexures P-1 and P-2 respectively) framed by the respondents which in effect set aside the tentative seniority lists, issued on 22nd March, 1968 and 6th September, 1968 (Annexures P-3 and P-4 ).

( 2 ) THE petitioner joined Anti Malaria Department of respondent No. 1 as a Anti Larval Jamadar with effect from 9th November, 1949. It is contended that he performed his duties efficiently, honestly and with integrity and there was no complaint against him, whatsoever. The petitioner was subsequently promoted from the said post as Surveillance Inspector with effect from 1st February, 1961 in the pay scale of Rs. 100-5-125-6-155-EB-6-185 vide office order No. 1187 dated 21st February, 1961 (Annexure P-5 ). The petitioner contended that he was promoted to the higher post of Malaria Inspector with effect from 1st November, 1961 vide office order dated 23rd October, 1961 and he was given the revised pay scale of Rs. 150- 10-290. Copy of the order is filed as Annexure P-6 to the writ petition and the same reads as follows: "municipal CORPORATION OF DELHI (HEAL