2-b, Jadulal Mullick Road,, Kolkata - 700006, West Bengal, India
163, A J C Bose Road,, Kolkata - 700014, West Bengal, India
131, B. K. Paul Avenue,, Kolkata - 700007, West Bengal, India
OCL INDIA LTD, 4, BBD BAGH STEPHEN HOUSE 1ST FLOOR, Kolkata - 700001, West Bengal, India
Plot No-23a, Room No-9, 1st Floor, Next To Balmer Lawrie, Netaji Subhas Road, Dalhousie,, Kolkata - 700001, West Bengal, India