tender for zonal maintenance work zone-1--cement concrete grade m-20 (nominal mix) with 20 mm maximum size of stone aggregate-providing and laying in position plain cement concrete (pcc) of specified grade excluding the cost of centering and shuttering , steel work welded in built up sections/ framed work including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required. in stringers, treads, landings etc. of stair cases including use of chequered plate wherever required, all complete. , foundations, footings, bases of columns, etc. for mass concrete.-centering and shuttering including strutting, propping stretching etc. complete for and removal of form work by sheet plate or ply wood shuttering for: