Zonal Contract for arresting of seepage on track bed, treatment of expansion/construction joints of RTS Box/ Elevated structures/ Stations/ Ventilation Shaft, box walls, floors, mezzanine & ceilings by grouting with cement admixed with non-shrinkable water proofing compound and with cementicious grout on both UP & DN track including pit lines and ballastless track from KDSW (Incl.) to Central (Incl.) including Noapara Car Depot of Blue Line and from KNAP (Incl.) to KJHD (Incl.) including Yard Lines at KJHD of Yellow Line of Metro Railway, Kolkata.