H9G6+C8F, Madan Mohan Sen St, Behind Ph.D Section, Calcutta University, College Square West, Calcutta University, College Square, Kolkata, West Bengal 700073, India
SATADAL, Office 41Shri, GOPINATH RAJBARI, no 1, metro Station gate, Branch 9A RAJA KALI KRISHNO LANE Br, Grey St, near SOVABAZAR, beside OF CCD, Kolkata, West Bengal 700005, India