Office: 
S. N. Bose National Centre for Basic Sciences
Block-JD, Sector-III, Salt Lake,   Kolkata- 700098, INDIA
Phone: +91-33-2335 5706/07/08, Extn. 203, 241
Fax    : + 91-33-23353477

Residence:
AA-110, Street no. 68, Action Area-I, New Town, Kolkata-700156, West Bengal, India
Mobile:9163958703

E-mail: kalyan@boson.bose.res.in

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