1/74, N S C Bose Road, , Kolkata - 700047, West Bengal, India
C/O B M Birla Heart Research Centre, 1/1, National Library Avenue, , Kolkata - 700027, West Bengal, India
35, Burtolla Street, , Kolkata - 700007, West Bengal, India
227, Rabindra Sarani, Burrabazar, , Kolkata - 700007, West Bengal, India
13b, Palit Street, Ballygunge, , Kolkata - 700019, West Bengal, India