Extra over item No. 20.3, 20.4 and 20.5 as the case may be, for adjusting of crest levels of O.F. and A.P.M. outlets with 1:2:4 cement concrete when lowering of 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 of crest levels of O.F. and A.P.M. outlets with 1:2:4 cement concrete when lowering of crest level is involved -H’ more than 0.5m but upto 0.9m