supply of different sizes of stone aggregate supply of different sizes of stone aggregate for 7 nos block under sepahijala district , any worksites within bishalgarh block area. 1st category stone aggregate (20 mm nominal size) , any worksites within bishalgarh block area. 1st category stone aggregate (12.5 mm nominal size) , any worksites within, charilam block area.1st category stone aggregate (20 mm nominal size) , any worksites within, charilam block area.1st category stone aggregate (12.5 mm nominal size) , any worksites withinjampuijala block area. 1st category stone aggregate (20 mm nominal size) , any worksites withinjampuijala block area. 1st category stone aggregate (12.5 mm nominal size) , any worksites withinboxanagar block area .1st category stone aggregate (20 mm nominal size) , any worksites withinboxanagar block area . 1st category stone aggregate (12.5 mm nominal size) , any worksites withinmohanbhog block area.1st category stone aggregate (20 mm nominal size) , any worksites withinmohanbhog block area. 1st category stone aggregate (12.5 mm nominal size) , any worksites withinnalchar block area. 1st category stone aggregate (20 mm nominal size) , any worksites withinnalchar block area. 1st category stone aggregate (12.5 mm nominal size) , any worksites withinkathalia block area.1st category stone aggregate (20 mm nominal size) , any worksites withinkathalia block area.1st category stone aggregate (12.5 mm nominal size)