Gandipet Lake is situated some 20 kilometers away from the Hyderabad city center. It flows in the western direction of the Hyderabad city. Gandhipet Lake is also known as Osman Sagar Lake. Mir Osman Ali Khan, the VIIth Nizam of Hyderabad city built a dam across river Musi when the violent floods destroyed the city in 1908. Mokshagundam Vishweswarayya did the planning for the construction of the Lake. It covers a catchment area of 46 square kilometers. The best time to visit the lake is right after the monsoons, from October to March.
The twin cities of Hyderabad and Secunderabad receive their water supply from this lake. The surroundings here are very pleasant and landscaped gardens with a swimming pool are among the recently added attractions. The Lake is always buzzing with activity be it summers or winters. The flow of tourists remains almost constant throughout the year. This should give an idea as to how popular the lake is among tourists.
Most tourists, who come with family and friends to Osman Sagar Lake, spend a major chunk of their time here reveling with food, playing games and having a lot of fun and enjoyment. The shores of the lake are well maintained and serve as picnic spot for tourists and locals alike. For those who want to stay overnight at the Lake, the Andhra Pradesh Tourism provides a guesthouse called 'Sagar Mahal' which used to be the summer resort of the erstwhile Nizam. It has about ten double rooms with proper arrangement of food.