The contact address of the Tata Communications Limited which is situated in the city of Lucknow in the state of Uttar Pradesh is as mentioned below:

Tata Communications Limited
509, 5th Floor,
Chintel House,
National Highway 25,
16 Station Road,
Udaiganj, Lalkuan,
Lucknow,
Uttar Pradesh 226001
Phone: 0522 645 4633

Other offices of the Tata Communication Limited in India are:

Mumbai
C-21 and C-36, G Block
Bandra Kurla Complex
Mumbai 400098

Pune
Pune-Alandi Road
Dighi, Pune 411015

New Delhi
5th Floor,
Next Gen Tower
New IDC Building
Opp Savitri Cinema,
GK- 1 New Delhi 110048

Kolkata
VSB 1/18 CIT Road
Scheme VII-M Ultadanga
Kolkata 700054

Chennai
VSB, No.4
Swami Sivananda Salai,
Chennai 600002

226 Red Hills Road
Kallikuppam, Ambattur
Chennai 600053

Offices of the Tata Communications Limited worldwide are:

Americas

Burlingame
700 Airport Boulevard
Suite 100
Burlingame, CA 94010
USA
Tel +1.650.262.0004

San Jose
2077 Gateway Place
Suite 150
San Jose, CA 95110
USA
Tel +1.408.437.4710

Herndon
2355 Dulles Corner Boulevard
Suite 700
Herndon, VA 20171
USA
Tel +1.703.547.5900

Matawan
90 Matawan Road, Third Floor
Matawan, NJ 07747
USA
Tel +1.732.888.6700

Montreal
1441 Rue Carrie-Derick
Montreal, Quebec
Canada H3C 4S9
Tel +1.514.868.7272

Europe

London
Vintners Place
68 Upper Thames Street
London EC4V 3BJ
United Kingdom
Tel +44 20 7029 9500

Frankfurt
Hamburger Allee 2-4, Suite 15B
60486 Frankfurt am Main,
Germany
Tel +49 69 247572-800

Paris
66, Avenue Charles de Gaulle
92200 Neuilly sur Seine
France
Tel +331 71 15 6900

Madrid
Avenida Doctor Severo ochoa, 51, planta 4ª
Edificio CasaBlanca
28100 Alcobendas
Madrid, Spain
Tel +34 916 57 48 90
Fax +34 91 662 0679

Warsaw
ul. Popularna 14
02-473 Warszawa
Poland
Tel +48 22 873 4000

Moscow
Office 646
3 Smolenskaya Square
121099 Moscow
Russian Federation
Tel +7 495 937 8376