( 1 ). THE petitioners in these two writ petitions were working as contract labourers since several years in the maintenance and operation works in electrical department under the supervision of the 3rd respondent-Executive Engineer, electrical Department in Begumpet Airport under the Administrative control of the 2nd respondent i. e. , Airport Authority of India and at a time when their services were sought to be terminated on the pretext that the term of the existing contractor expired and a new contractor has been engaged to attend to the works that are being performed by the petitioners all through filed these writ petitions for issuance of a writ of Mandamus to the respondents to consider their cases for regularization hi the trades they are working without inducting fresh candidates.

( 2 ). The undisputed facts of this case are that the 3rd respondent claiming to be the principal employer getting the works of maintenance and operation done by entering into contracts from time to time with the contractors who in turn were engaging the services of the petitioners as contract labourers to attend to these works. It also came to light that most of the petitioners