OM PRAKASH SHUKLA, J.

1. The present writ petition arises out of order dated 31.01.2025¹“Impugned order”, hereinafter passed in Original Application²“OA”, hereinafter No. 3834/2017, whereby the learned Central Administrative Tribunal³“Tribunal”, hereinafter had allowed the aforesaid O.A. and directed the Respondent to re-fix the Grade Pay of the Petitioners on notional basis and pension order but restricted the arrears to only for three years preceding the date of filing of the said O.A. in light of the decision of the Hon’ble Supreme Court in Union of India and Others v. Tarsem Singh⁴(2008) 8 SCC 648.

2. The Petitioners have assailed the Impugned Order only to the extent of the direction passed by the learned Tribunal of restricting the benefit to only three years preceding the filing of the underlying O.A.

3. The facts leading to the filing of the O.A. No. 3834/2017 are set out below.

4. The Petitioners were initially appointed as Vaccinators, the post which was subsequently re-designated as Public Health Inspectors⁵“PHIs”, hereinafter in the office of the Respondent.

5. As per the office order dated 31.05.2005 issued by the Respondent, the pay scales of the supervisory staff sto