Saptarshi Building, 19, Subodh Garden, Po-bansdroni,, Kolkata - 700070, West Bengal, India
No. Cb-5, Rail Pukur Road, Deshbandhu Nagar Baguiati,, Kolkata - 700053, West Bengal, India
Howrah, Kolkata - 700115, West Bengal, India
P-20, Kasba Industrial Estate, Phase-i,, Kolkata - 700107, West Bengal, India
C/o Dr.s.c.saha, Mathpara, Barrackpore, Near Barasat Road,, Kolkata - 700122, West Bengal, India