supply of flood fighting materials with utilisation as an when required basia under juridiction of krishnagar irrigation sub division under nadia irrigation division.- 1 supplying nylon cage netting 1 metre x 1 metre x 1 metre size with knot having mesh size 17.5 cm x 17.5 cm constructed with nylon thread (210 x 24) having tensile strength not less than 250 kg. / sq. cm. including carriage, delivery and stacking at site inclusive of all taxes complete. 2 supplying to site empty cement polythene bags (capacity 50kg) in good condition including stacking, incedental charges etc. all complete (capacity 50 kg). 3 labour charges for dumping and placing in position properly filled in nylon crates with filled in gunny / poly cement bags (minimum 25 nos. having capacity 50 kg) with local earth or sand, sewing and tying the crate with nylon wire within a lead of 150 m. and all lifts in river slope or bed by cutting trenches upto 50 cms depth, if necessary, or by boat including cost of hire charges of boat, boatmen and other necessary equipments and also carriage and charge of filling bags with earth / sand but excluding cost of nylon crate and gunny/poly cemrnt bags as per direction of the engineer – in – charge. nb:- volume of each earth/ sand filled bags should not be less than 0.028 m3. size of nylon crate is 1metre x 1metre x 1metre. (a) where boats are not necessary. 4 labour charges for dumping and placing in position properly filled in nylon crates with filled in gunny / poly cement bags (minimum 25 nos. having capacity 50 kg) with local earth or sand, sewing and tying the crate with nylon wire within a lead of 150 m. and all lifts in river slope or bed by cutting trenches upto 50 cms depth, if necessary, or by boat including cost of hire charges of boat, boatmen and other necessary equipments and also carriage and charge of filling bags with earth / sand but excluding cost of nylon crate and gunny/poly cemrnt bags as per direction of the engineer – in – charge. nb:- volume of each earth/ sand filled bags should not be less than 0.028 m3. size of nylon crate is 1metre x 1metre x 1metre. (b) where boats are necessary. 5 labour charges for filling empty cement gunny bag / polythene bag (capacity 50 kg) with all kinds of earth (wet or dry), sand or agreegates(stone / brick) and sewing as done in case of cement bags ,(tying with a knot after filling will not be accepted ) , and stacking within a lead of 30 metre as per direction of engr-in-charge (cost is excluding the cost of any types of filling materials). nb:- volume of earth/ sand filled bags should not be less than 0.028cum/ bag. 6 dumping in position earth / sand filled gunny / poly bags (capacity 50 kg) within a lead of 30 metre inclusive of all lifts.