mechanized environmental support services up-keeping for ancillary buildings and their allied areas at chennai airport , paved mechanized environmental support services and maintenance of paved / metalled areas i / c bma , kerb area , footpaths etc . of airport ancillary buildings complex complete with labour , materials & machines as required as per scope of work . ( non-pax area ) ( rate to be quoted for one shift ) , npax floor ( one shift ) environmental support services ( up-keeping ) and maintenance of offices / ancillary buildings ( excluding toilets ) including scrubbing and cleaning , internal / external walls including , cleaning of metal accessories / surfaces etc . complete with labour , materials as required . ( non passenger area ) ( rate to be quoted for one shift ) , npax floor ( two shifts ) environmental support services ( up-keeping ) and maintenance of offices / ancillary buildings ( excluding toilets ) including scrubbing and cleaning , internal / external walls including , cleaning of metal accessories / surfaces etc . complete with labour , materials as required . ( non passenger area ) ( rate to be quoted for two shifts ) , npax toilet ( one shift ) mechanized environmental support services and maintenance of toilet blocks in offices / ancillary buildings including scrubbing and cleaning of floors , tiles , counters , walls , sanitary fixtures & fittings and cleaning of metal accessories etc . complete with labour & materials as required as per scope of work . ( non-passenger area toilet ) ( rate to be quoted for one shift ) , npax toilet ( two shifts ) mechanized environmental support services and maintenance of toilet blocks in offices / ancillary buildings including scrubbing and cleaning of floors , tiles , counters , walls , sanitary fixtures & fittings and cleaning of metal accessories etc . complete with labour & materials as required as per scope of work . ( non-passenger area toilet ) ( rate to be quoted for two shifts )