COMMON ORDER

With the consent of both the parties, all these Writ Petitions were heard together and accordingly, the following common order is passed.

2. Heard Ms.Rita Chandrasekar, learned counsel appearing for the petitioner, Mrs.V.Yamuna Devi, learned Special Government Pleader appearing for the 1st respondent and Mr.S.Silambanan, learned Additional Advocate General appearing on behalf of the 2nd respondent.

3. In all these Writ Petitions, the petitioners were appointed as Drivers between the years 1984 and 1989 and on completion of 10 years and 20 years of their services, they were granted selection grade and special grade pay scales. Through orders passed by this Court in W.P.No.27313 of 2010, dated 28.02.2011, the Tamil Nadu Pollution Control Board (hereinafter referred to as 'the Board') was directed to re-fix the pay scales of the Drivers, in accordance with Schedule-II of the Tamil Nadu Revised Scales of Pay Rules, 1988, in the selection grade and special grade scales of pay, by adopting the scale of Rs.5,000-150-8,000/- and Rs.5,500-175-9,000/- respectively. The order of this Court came to be implemented by the Board through their proceedings dated 15.03.2012. Thereafter, th