annual repair maintenance of to non residential buildings under division no iii shimla. ( sub head - shifting of sewerage line and water line at information commission site and at cm office site etc.) a/r and m/o to non residential buildings under division no iii shimla. ( sub head - shifting of sewerage line and water line at information commission site and at cm office site etc.) , providing and fixing high pressure type- b pvc spigot and socket ,waste and ventilating pipes isi marked including fixing with approved adhesive etc.completeincluding carriage of materials in all leads and lifts.a) 150mm dia. , providing and fixingpvc finolex plain bendisi marked including fixing with approved adhesive etc. complete including carriage of materials within all leads and lifts:- (i) 150mm dia. , providing and fixingpvc finolex collarisi marked including fixing with approved adhesive etc. complete including carriage of materials within all leads and lifts:- (i) 150mm dia. , providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - all work up to plinth level :1:2:4 (1 cement : 2 coarse sand) : 4 graded stone aggregate 20 mm nominal size) , providing and fixing g.i. pipes complete with g.i. fittings including trenching and refilling etc.external work complete including carriage of materials within all leads and lifts and as per the direction of engineer-in-charge:-(i) 25mm dia nominal bore. , constructing manhole with r.c.c top slab in 1:2:4 mix in 1 cement 2 sand 4 graded stone aggregate 20mm nominal size) foundation concrete1:4:8 (1cement 4 sand 8 graded stone aggregate 40mm nominal size inside plastering 15mm thick with cement mortar 1:3 (1cement 3 sand) finished with a floating coat of neat cement and making channels in concrete 1:2:4 mix (1 cement 2 sand 4 graded stone aggregate 20mm nominal size) finished smooth complete including curng and testing inside size 800mm x 800mm and 1000mm deep including 600mm dia precast rcc cemocrete or equivalent manhole cover with frame (medium duty) with 200mm thick walls of brick masonry using common burnt clay building bricks in cement mortar 1:3 (1 cement: 3 sand) including carriage of materials within all leads and lifts.