upgradation of central nursery , procuring root trainers , root trainers of 750 cc with following dimensions :-1) material hdpe black, 2) inner dimension 95 mm 3) outer dimension 98 mm 4)length 160mm 5) wall thickness 2mm 6) inner rip 6, 7)rip thickness 2 mm , root trainers of 1000 cc with following dimensions :-1) material hdpe black, 2) inner dimension 117 mm 3) outer dimension 126 mm 4) length 250mm 5) wall thickness 2.5mm 6) inner rip 8, 7)rip thickness 2.2 mm , modification of existing root trainer stands:- stands to hold 750 cc root trainers : the existing stands are of size 103cm x 97cm. to hold 750 cc root trainers, 6 mm rods are to be welded 9.5cm apart to have a capacity of 90 root trainers per stand. to hold 20000 seedlings a total of 225 stands will be needed. cost fo dismantling existing nettings of stands , cost of supplying including cutting bending all complete 6 mm rods of 1 mtr length each to be welded at both ends on the top of stands i.e. 9 no of rods of 1 mtr length each = 9m including 5% wastage , cost of supplying including cutting bending all complete 8 mm rods of 1.05 mtr lengthto support the 6mm rods over 2 nos per stand includingincluding 5% wastage , welding in ms structureal works to fix the rods with the stand frame with gas or electric , m.s or w.i ornamental grill works for extran support to the stand 4 nos. l shaped at all the mid points of length & breadth all complete , priming one oat with synthetic oil bound primer of approved make & brand all complete , painting with ready mixed black japan of approved make & brand all complete , total cost for upgrading one no stand to hold 750 cc root trainer , total cost for upgrading 225 nos stand to hold 750 cc root trainer , stands to hold 1000 cc root trainers : the existing stands are of size 103cm x 97cm. to hold 1000 cc root trainers, 6 mm rods are to be welded 11cm apart to have a capacity of 56 root trainers per stand. to hold 40000 seedlings a total of 720 stands will be needed.cost fo dismantling existing nettings of stands , cost of supplying including cutting bending all complete 6 mm rods of 1 mtr length each to be welded at both ends on the top of stands i.e. 7 nos. of rods of 1 mtr length each = 7m including 5% wastage , cost of supplying including cutting bending all complete 8 mm rods of 1.05 mtr lengthto support the 6mm rods over 2 nos per stand includingincluding 5% wastage , welding in ms structureal works to fix the rods with the stand frame with gas or electric , m.s or w.i ornamental grill works for extran support to the stand 4 nos. l shaped at all the mid points of length & breadth all complete , priming one oat with synthetic oil bound primer of approved make & brand all complete , painting with ready mixed black japan of approved make & brand all complete , total cost for upgrading one no stand to hold 1000 cc root trainer , total cost for upgrading 720 nos stand to hold 1000 cc root trainer , total cost for both type of stands , gst 18% b , total c= (a+b) , cess 1% d , contingency 3% e , total f= (c+d+e) , total cost for supply of 750 cc & 1000 cc hycopot and upgradation of iron stand at central nursery