K. N. Raghavan
Institute of Mathematical Sciences
C. I. T. Campus,  Taramani
Chennai 600 113

Office Room No. 414,  Telephone extension 264
Telephone (direct): +91-44-2254-3264

knr at imsc dot res dot in

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Home telephone number is +91-44-2844-1505.
Personal email could also be sent to:
knr dot imsc at gmail dot com