supply of material for the construction of gravel road from dibiya harijan culvert to nabin pramanik house via tikin barman house under bhawairthana gp within sitalkuchi dev. block- 1 stone aggregate ( single size ) :63 mm nominal size 2 stone aggregate below 40 mm nominal size 3 loading unloading & stacking sand / stone aggregate ( less than 40mm nominal size ) 4 stone aggregate 40 mm nominal size and above 5 stone screening type a ( 13.2 mm ) 6 loading unloading & stacking stone aggregate ( above 40mm nominal size ) 7 river bed material 8 hire charges of diesel road roller- 8 to 10 tonne 9 rcc pipe 600 mm dia np- 3 spigot 10 loading, unloading & stacking by manual means ( r.c.c. pipes , c.i. pipes and unreinforced cement pipes ) 600, 700, 750 & 800 mm dia 11 display board 12 worksite facilities / creche / drinking water / first aid 13 gst