bids are invited for water connection excavation in trenches not exceeding 1500 cm wide and not exc 1500 cm in deep pipe line , returning and filling including spreading leveling watering and well ramming in layers not exceeding 25 cm thick , removing of surplus excavated soil to a distance not exceeding 50 metre and depositing where directed at a level not exceeding 1500 centimetre , m and l for gi water tubing medium grade 25 mm with all fitting and fixed , m and l for gi water tubing medium grade 20 mm with all fitting and fixed , m and l for gun metal glove or gate valves of 25 mm dia with iron wheel head screwed both ends for iron pipe , m and l for gun metal glove or gate valves of 20 mm dia with iron wheel head screwed both ends for iron pipe , m and l for tee branch connection of size 100 x 100 x 25 mm total quantity : 389