Extra over item No. 20.3, 20.4 and 20.5 as the case may be for adjusting crest lev 1:2:4 cement concrete when raising of the crest level is involved.H’ more than 0.5m but upto 0.9m
Extra over item No. 20.3, 20.4 and 20.5 as the case may be for adjusting crest lev 1:2:4 cement concrete when raising of the crest level is involved.H’ more than 0.5m but upto 0.9m