tender for 1st category stone aggregate ( nominal size-20 mm / 12.5 mm ) various scheme within bishalgarh, charilam , jampuijala, boxanagar , mohanbhog, nalchar & kathalia r.d. block under r d bishramganj division , 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 within jampuijala block area . 1st category stone aggregate ( 20 mm nominal size ) , any worksites within jampuijala block area . 1st category stone aggregate ( 12 . 5 mm nominal size ) , any worksites within boxanagar block area . 1st category stone aggregate ( 20 mm nominal size ) , any worksites within boxanagar block area . 1st category stone aggregate ( 12 . 5 mm nominal size ) , any worksites within mohanbhog block area . 1st category stone aggregate ( 20 mm nominal size ) , any worksites within mohanbhog block area . 1st category stone aggregate ( 12 . 5 mm nominal size ) , any worksites within nalchar block area . 1st category stone aggregate ( 20 mm nominal size ) , any worksites within nalchar block area . 1st category stone aggregate ( 12 . 5 mm nominal size ) , any worksites within kathalia block area . 1st category stone aggregate ( 20 mm nominal size ) , any worksites within kathalia block area . 1st category stone aggregate ( 12 . 5 mm nominal size )