construction pacca drain with slab from sastigar to middegarl at simla , earth work in excavation of foundation trenches or drains , filling in foundation or plinth by silver sand in layers not exceeding 150 mm , supplying and laying polythene sheet (150gm / sq.m.) , hire and labour charges for shuttering with centering and necessary staging , cement concrete with graded stone ballast (40 mm size excluding shuttering) , brick work with 1st class bricks in cement mortar (1:6) , ordinary cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) , reinforcement for reinforced concrete work , plaster (to wall, floor, ceiling etc.) with sand and cement mortar 15 mm thick , neat cement punning about 1.5mm thick in wall , earth work in filling in foundation trenches or plinth , providing&fixingconcretesignboardasperirc specification ofsize900x 750x 37 mm