HIRING THE SERVICES FOR REPLACEMENT OF EXISTING RCC TRENCH COVERS WITH PAVER BLOCKS IN THE MAINLINE PUMP SHED AT PS-01 WHICH PRIMARILY INVOLVES DISMANTLING OF EXISTING CONCRETE SLABS AND PROVIDING PAVER BLOCKS OVER THE CABLE TRENCH ADJACENT TO THE MLPS AND ROCKING PUMPS OF MAIN-LINE AND BRANCH-LINE. (LIMITED TENDER BASIS)