P- 6, Scheme- 6, M. S., C. I. T., Kolkata, West Bengal - 700054,India
No. 10A, Ho Chi Minh Sarani, Bells House, 2nd Floor, Opposite American Embassy, Kolkata, West Bengal - 700071,India
No. 202, Mahatma Gandhi Road., Kolkata, West Bengal - 700007,India