us consulate customer care number in kolkata

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U.S. Embassy
Shantipath, Chanakyapuri
New Delhi - 110021
Tel: 011-91-11-2419-8000
Fax: 011-91-11-2419-0017

American Center
24, Kasturba Gandhi Marg
New Delhi - 110001
Tel: 011-91-11-2347-2000

Email addresses:
Nonimmigrant visas support-india@ustraveldocs.com
Immigrant visas support-india@ustraveldocs.com
American Citizens Services acsnd@state.gov
General NDwebmail@state.gov
Webmaster  NDwebmail@state.gov
http://newdelhi.usembassy.gov/

Consulates and the American Centers:

Kolkata

Consulate General
5/1, Ho Chi Minh Sarani
Kolkata- 700071
Tel: 011-91-33-3984-2400
Fax: 011-91-33-2282-2335
email: KolkataPAS@state.gov
http://kolkata.usconsulate.gov/

American Center
38/A, Jawahar Lal Nehru Road
Kolkata - 700071
Tel: 011-91-33-2288-1200
email: KolkataPAS@state.gov
http://kolkata.usconsulate.gov/

Chennai

Consulate General
No. 220, Anna Salai
Chennai - 600006
Tel: 011-91-44-2857-4000
email: chennaic@state.gov
http://chennai.usconsulate.gov/

American Center
No. 220, Anna Salai
Chennai - 600006
Tel: 011-91-44-2857-4000
email: chennairefdesk@state.gov
http://chennai.usconsulate.gov/

Mumbai

Consulate General
C-49, G-Block, Bandra Kurla Complex
Bandra East, Mumbai - 400051
Tel: 011-91-22-2672-4000
email: mumbaipublicaffairs@state.gov
http://mumbai.usconsulate.gov/

Hyderabad

Consulate General
Paigah Palace
1-8-323
Chiran Fort Lane,
Begumpet
Secunderabad - 500003
Andhra Pradesh
Tel: 011-91-40-40338300
email: HyderabadPA@state.gov
http://hyderabad.usconsulate.gov/

Note about codes (Delhi for example):

If you are calling from the United States, first dial 011-91-11-.
If you are calling from within India, but outside Delhi, first dial 011-.