2.The Petitioner was appointed as NMR in the fourth respondent Municipality in the year 1987. Pursuant to the Government Order in G.O.Ms.No.21, Municipal Administration and Water Supply Department dated, 23.02.2006, the petitioner's service was regularised with effect from 01.06.2009 and he was posted as Junior Assistant. According to the petitioner, as per Rule 11 of the Tamil Nadu Pension Rules, 1978, 50% of the services rendered by him on daily wages basis shall be taken into consideration as qualifying service for pension. Therefore, the petitioner has submitted several representations to the respondents to bring him under the Tamil Nadu Pension Rules 1978 (old pension scheme) and the same was rejected by the fourth respondent, by the order impugned in this writ petition and the same is challenged in this writ petition.