mahathma gandhi nregs - road work and other construction works purchase of materials for mahathma gandhi nregs - road work and other construction works , road work and construction works , stone aggregate ( single size ) : 6 mm nominal size , stone aggregate ( single size ) : 20mm nominal size , stone aggregate ( single size ) : 40 mm nominal size , fine sand ( zone iv ) , coarse sand ( zone iii ) , stone for masonry work , laterate stone of size 40x20x15cm , quarry waste , interlocking c . c . paver block ( 80 mm thick , m-30 ) , twisted steel/deformed bars , binding wire , solid blocks of size 40x20x20cm , solid blocks of size 30x20x20cm , solid blocks of size 30x20x15cm , solid blocks of size 40x20x15cm , solid blocks of size 40x20x10cm