Gandipet, also known as Osman Sagar, is a beautiful lake located 20 km west of Hyderabad
. This lake was formed as a result of damming of the Musi River
in 1920 by Mir Osman Ali Khan.
It spreads over 46 sq km and forms the source of drinking water for the twin cities of Hyderabad and Secunderabad. The well-laid out lush green gardens and swimming pool are the major attractions. The lake offers boating facilities to the tourists. This picnic spot also has guesthouse facilities.