| Brand: | GKB Opticals |
| Address: | BE-4, Sector 1, Salt Lake City, Kolkata - 700064 |
| City: | Kolkata |
| State: | West Bengal |
| Phone: | 033 - 64570844 |
| Website: | www.gkboptical.com |
| Brand: | GKB Opticals |
| Address: | E-104, City Centre, DC Block, Sector -1, Salt Lake, Kolkata - 700064 |
| City: | Kolkata |
| State: | West Bengal |
| Phone: | 033 - 23584539, 64570847 |
| Website: | www.gkboptical.com |