Labour charges for re-arrangements of existing of G.I/M.S./PVC/HDPE pipe line for dewatering of W1, F4 and W-2 sumps at JVR OC-I and OC-II West Sump, W2 East Sumps at OC-II (OC-I dip side virgin property ) and 2nd Offloading OC-II (M/s Sushee Hi-Te