Hon’ble Sudhir Agarwal, J.—In all these matters, the petitioners were engaged as Lab Technicians/Sputum Microscopist/Tuberculosis Health Visitor (TBHV) for a period of one year and after completion of their tenure, have not been engaged for subsequent period, hence they have sought a writ of certiorari for quashing the order declining to grant extension/renewal of tenure and have also sought a writ of mandamus commanding the respondents to continue the petitioners as Lab Technicians/Sputum Microscopist/TBHV so long as the scheme continues.

2. There are three petitioners in writ petition No. 21627 of 2008, namely Vivek Kumar Misra, Dhananjay and Onkar Nath Singh. The Government of India launched the scheme at National Level known as “Revised National Tuberculosis Control Programme” which is to be implemented at District level through Tuberculosis Control Society. The scheme was initially launched for a particular period which was extended from time to time and presently the Directorate General of Health Services, New Delhi’s letter dated 6.1.2006, the same is said to have been extended up to September, 2010. In furtherance of the aforesaid scheme on 6th September, 2006, an ad