Survottam Mercantile Private Limited
No. 10A, Ho Chi Minh Sarani, Bells House, 2nd Floor, Opposite American Embassy
Kolkata- 700071, West Bengal (India)
Sigma Consultants Private Limited
No. 11, Camac
Kolkata- 700017, West Bengal (India)
Royal Enterprise
No. 21/145, Edison Road, B Zone
Durgapur- 713205, West Bengal (India)