About Nalgonda
Nalgonda is a city and municipality in the Indian state of Telangana. It is the headquarters of the Nalgonda district, as well as the headquarters of the Nalgonda Mandal in the Nalgonda revenue division. It is located about 90 kilometers (56 mi) from the state capital Hyderabad.
The city's name is derived from two Telugu words: nalla ("black") and konda ("hill"). In the past, Nalgonda was referred to as Nilagiri. During the medieval Bahamani kingdom, it was renamed Nalgonda. The name was changed to "Nalgonda" for official uses during the rule of the later Nizam kings. It has a population of 3,483,648, of which 13.32% is urban as of 2011. The district shares boundaries with Suryapet, Rangareddy, Bhuvanagiri, and Nagarkurnool districts, and with the state boundary of Andhra Pradesh. The district is spread over an area of 2,449.79 square kilometers (945.87 sq mi).
Source: Wikipedia