deep screening of loop lines (tkv line no. 1 and 3, kps line no. 1 and 4, ddp line no. 1 and4, em line no. 1 and 4, cw line no.4, dda line no. 1 and 4, pck line no. 4) (lines - 12 nos)(total - 9.60 km) under jurisdiction of aden/siwan.bidding type normal tender .