No. 45/5/a, Ground Floor, Chakraberia Road (south),, Kolkata - 700025, West Bengal, India
Shrachi Tower, 5th Floor, 686, Anandpur, Em Bypass, Kasbha,, Kolkata - 700107, West Bengal, India
Room 401, 4th Floor, Krishna Building, 224a. A.j.c. Bose Road,, Kolkata - 700017, West Bengal, India
OCL INDIA LTD, 4, BBD BAGH STEPHEN HOUSE 1ST FLOOR, Kolkata - 700001, West Bengal, India
131, B. K. Paul Avenue,, Kolkata - 700007, West Bengal, India