Kolkata Head Office
Address: 17/3, Raja Rajkrishna Street,
Kolkata - 700006
Phone: 033 - 25550262 / 25304641
Mobile: - + 919733300 - 676 or 686
E-mail: info@nbtt.in
Siliguri Operations Office
Address: 57 Station Feeder Road,
Siliguri - 734005
Phone: 0353 - 2500656
E-mail: info@nbtt.in
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