non qcbs mechanized environmental support services ( up-keeping ) at fstc, kolkata , npax floor 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 , ops area & roads etc environmental support services and maintenance of connecting roads / drill ground / approach roads / garage , etc . of fstc complex complete with labour , materials as required as per scope of work , npax toilet 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 . providing toilets papers , soaps , sanitary cubes , freshener sticks ( where automatic dispensers are not available ) etc . complete with labour & materials as required as per scope of work