<P> Geographically divided from Hyderabad by the Hussain Sagar lake , Secunderabad is no longer a separate municipal unit and has become part of Hyderabad 's Greater Hyderabad Municipal Corporation ( GHMC ) . Both cities are collectively known as Hyderabad and together form the fifth - largest metropolis in India . Being one of the largest cantonments in India , Secunderabad has a large presence of army and air force personnel . </P>
<P> Geographically divided from Hyderabad by the Hussain Sagar lake , Secunderabad is no longer a separate municipal unit and has become part of Hyderabad 's Greater Hyderabad Municipal Corporation ( GHMC ) . Both cities are collectively known as Hyderabad and together form the fifth - largest metropolis in India . Being one of the largest cantonments in India , Secunderabad has a large presence of army and air force personnel . </P>
what is the name of the lake between hyderabad and secunderabad
what is the name of the lake between hyderabad and secunderabad
Hussain Sagar lake
Hussain Sagar lake