Secunderabad is the twin city of Hyderabad, India, and is separated by the man made lake, Husain Sagar, from the capital of Andhra Pradesh. Secunderabad was founded in the 18th century as a British cantonment, and to this date has a large Army presence. Named after Sikandar Jah, the third Nizam of the Asaf Jahi dynasty, Secunderabad had its own municipality and city government, until recently when it was merged with Hyderabad, the district. In common parlance however, Secunderabad is seldom used these days outside the twin cities. Instead Hyderabad is used normally. The population of Secunderabad Cantonment is 204,182 (2001 census}.

Sir Ronald Ross conducted his initial research on the cause of malaria here.

The town is served by a station of Indian Railways.Secunderabad is a major railway junction in the Wadi-Vijayawada railway route.

Predefinição:AndhraPradesh-geo-stub