tender for sewa river protection work near power house, cps-1.; 1 earth work in excavation by mechanical means hydraulic excavator/manual means overareas (exceeding 30 cm in depth, 1.5 m inwidth as well as 10 sqm on plan) including getting out and disposal of excavated earthlead upto 50 m and lift upto 1.5 m, as directedby engineer-in-charge. ordinary rock. 2 centering and shuttering including strutting, propping retaining walls, return walls, walls (any thickness) including attached pilasters, buttresses, plinth and string courses fillets, kerbs and steps etc. and removal of form workfor retaining walls, return walls, walls (any thickness) including attached pilasters, buttresses, plinth and string courses fillets, kerbs and steps etc. 3 providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - all work up toplinth level :1:2:4 (1 cement : 2 coarse sand) :4 graded stone aggregate 40 mm nominal size). 4 providing and fixing u-pvc pipes (working pressure 4 kg / cm²) single socketed pipe 110mm dia for weep holes. 5 providing and filling of stone boulder behind r/wall.