4.1. Per contra , Sri Pravin Kumar, appearing for respondent corporation would submit that initial recruitment itself was on daily basis; petitioners never protested when they were appointed on daily wage basis and continued in said post till their services were regularized. But for order of the Government in G.O.Ms No. 145 dated 1.7.2009, their services could not have been regularized. He would submit that the Government earlier granted permission to the corporation vide G.O.Ms No.285 Transport, Roads and Buildings (Tr.II) Department dated 5.10.2007 to regularize casual employees working for long time in 3750 posts then available. In terms of the Government orders, services of casual employees were regularized. In the process, 603 posts remained unfilled for various reasons. Further, as some more casual employees were demanding for regularization, permission to regularize casual employees in the resultant unfilled vacancies and some other vacancies subsequently available was granted vide G.O.Ms No. 145 dated 1.7.2009.