(Petition filed under Article 226 of the Constitution of India praying for the issuance of a writ of Certiorari as stated therein.)

P. Sathasivam, J.

Aggrieved by the order of the Tamil Nadu Administrative Tribunal, Chennai dated 10.01.2003 made in O.A.No.2662 of 2001, the petitioner has filed the above writ petition to quash the same.

2. According to the petitioner, he joined the service in Adi-Dravidar Welfare Department as Secondary Grade Teacher in the year 1965 and continued as such till 1992. Since he was stagnating in the post of Secondary Grade Teacher for 10 years and 20 years, he was awarded Selection Grade and Special Grade respectively on completion of the said period of service. In the month of July,1992 he was promoted as Headmaster of Elementary School run by the Adi-Dravidar Welfare Department. Thereafter, he was entitled to draw the scale of pay due to the Elementary School Headmaster. After 01.06.1988, the post of Elementary School Headmaster had been made as a promotional post. Prior to that date, the post of Elementary School Headmaster is equivalent to Secondary Grade Teacher. Though he worked as Elementary School Headmaster prior to 1988, his status w