88 . Const. P. 4754/2014 (D.B.) Nabi Hussain and Ors V/S M.D KW & SB and Ors Sindh Substantial Court docket, Karachi 2025 SHC KHI 391 Upgradation with retrospective effect" refers to some situation exactly where an employee's shell out scale is amplified to a higher degree, with out a alter within their duties or situation, which boost is applied t