Kolkata Branch Office-I | Bureau of Indian Standards

Name & Designation	Telephone Numbers	Email address
Shri Sabyasachi Dhar Scientist-E & Head	Tel: 033-23670017 Extn.: 120 Mobile: 9435114523	hkkbo[at]bis[dot]gov[dot]in , kkbo[at]bis[dot]gov[dot]in , sabyasachi[at]bis[dot]gov[dot]in