e-tender for ofc construction of work, laying plb pipe / duct and associated works by open trench method, optical fibre cable pulling / blowing and splicing works etc., for latur district jail in latur operation area in nanded ba of bsnl maharashtra telecom circle - excavation of trenches:rate for excavating trenches of 1x0.45x0.30 mtr up to a depth of 165cms. and back filling the excavated trenches after laying the hdpe / plb pipe with or without protection 2 i ) non-rocky soil 3 laying of hdpe pipes / plb coils, coupled with hdpe socket and drawing 6 mm pp rope. 4 road / rail crossing through horizontal boring method and inserting 75 mm and above dia g.i. pipes and pushing hdpe pipes / plb coils inside and drawing upto 6 nos of plb pipe inside and drawing6mm pprope. 5 providing rcc protection at site to hdpe / plb or g.i. pipes reinforced by weld mesh & drawing of p.p. rope. 6 opening of manholes, replacing 6mm pp rope, pulling of 24 f o.f. cable, sealing of hdpe pipes by rubber bushes in manholes, providing hdpe / rcc split pipes in manholes / back filing of manholes. 7 digging of pit ( 1.5m x 1.5m x 1.65m ) for jointing chamber, supply & fixingof precast rcc chamber ( ring with 60cm height, 100 cm outer dia, 5cm wall thickness with bottom and top cover ) , filling of rcc chamber with clean sand , placing pf precast rcc slabs on rcc chamber and back filling of jointing pit ( all material required for precast rcc chamber and sand shall be arranged by the contractor ) , generally the top level of the chamber may be maintained 0.5m below the grounded level.sample piece quality to be checked and ensured in all item to be supplied by vendor / contractor. 8 documentation ( 6 copies of documents for each route / section = one set ) 9 splicing / termination of 24f optical fiber cable