S. Nagamuthu, J.

1. The Petitioners in W.P.(MD) No. 1083 of 2012 are all working as Sanitary Workers in Madurai Municipal Corporation. Some of them were appointed as per Order, dated 9.7.1999 and others were appointed by Orders dated 26.11.1999 & 5.9.2000, respectively. By Order dated 9.7.1999, a total number of 81 persons were appointed, by Order dated 26.11.1999, a total number of 30 persons were appointed and by Order dated 5.9.2000, a total number of 93 persons were so appointed, as Sanitary Workers. These appointments were made as per G.O.Ms. No. 101, Municipal Administration and Water Supply Department, dated 30.4.1997. Subsequently, Government issued two more Government Orders under G.O.Ms. No. 71, Municipal Administration and Water Supply Department, dated 5.5.1998 and G.O.Ms. No. 21, Municipal Administration and Water Supply Department, dated 23.2.2006. As per the above two Government Orders, the Petitioners were all regularised as Sanitary Workers with effect from 31.10.2006. Their grievance is that such regularisation ought to have been given with effect from the date on which they had completed three years of service from the date of their initial appointment and