Few lists of address for visa application authorities are available here

If you are looking for the Indian Embassy or whom to address for your Visa Application here is the list below. You can also look for sample format for application letter for business visa. You can also read how to apply for a Visa for India.

Obtain a visa from United Kingdom	Obtain a visa from United States of America
Visa Section High Commission of India India House Aldwych London WC2B 4NA United Kingdom	The Visa Officer BLS INTERNATIONAL 220 I Street NE, Washington, DC 20002 USA
Obtain a visa from Holland/ The Netherlands:	Obtain a visa from Poland
The Visa Officer Embassy of India Buitenrustweg 2, 2517 KD The Hague Netherlands	The Visa Officer Embassy of India Poland
Obtain a visa from Switzerland	Obtain a visa from Italy
The Visa Officer Embassy of India Switzerland	The Indian General Consulate of Milan Via Larga 16, 20122 Milano Italy
Obtain a visa from Spain	Obtain a visa from Finland
The Visa Officer Embassy of India Spain	The Visa Officer Embassy of India Finland
Obtain a visa from Germany
Applying From Berlin	Applying from Hamburg
Indische Botschaft Berlin Tiergartenstraße 17 10785 Berlin	Generalkonsulat Indien Graumannsweg 57 22087 Hamburg or Indo German Consultancy Services Ltd. Mundsburger Damm 6 22087 Hamburg

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