L-146 Dr N P Bhattacharyya Card and MB Division Saha Institute of Nuclear Physics 1/AF Bidhan Nagar Kolkata - 700 064 033-370659 / 091-033-374637 / Tags & Categories physics doctor division institute nuclear kolkata nagar bidhan bhattacharyya 370659 033-370659 091-033-374637 bhattacharyya division institute