Operation And Maintenance Of 3 Nos 150 Mm Dia Cable Duct (3no X 3136 Mtr) With 63 Nos Inspection Pit And 7 Nos Hdpe 40 Mm (7x 2947 Mtr) At The Zone I) Infinity Building To Plasto Chemical Ii) Rdb Boulevard Iii) Towders Oxford Building Iv) Rdb To Fis