Clearing & removal of jungles, bushes, water hyacinths etc. from the canal bed and slope of 'E' canal, 'F' canal & 'G' canal in Action Area - I , 'N' canal, 'P' canal , 'QX' canal , 'R' canal, 'RY' canal , 'S' canal , 'T' canal , 'TX' canal in Action Area - III under NKDA, New Town, Kolkata (For a period of 365 days). & Operation and maintenance of Draw Shutter Gates and other ancillary work and outfall Structure at six different locations from Chainage – 4.50 to 12.80 along Bagjola Canal in Action Area – I, II, III under NKDA.