Hyderabad is the capital of Telangana in Southern India, located on the banks of the Musi River and on the Deccan Plateau. Hyderabad and Secunderabad are "twin cities" near Hussain Sagar Lake (also known as Tank Bund in local parlance) but both cities have grown so much that now they have become one big metropolis. The city and district of Hyderabad are coterminous. Hyderabad district is entirely contained within the Ranga Reddy district of Telangana. Many of the suburbs of Hyderabad were recently merged into the city, now called Greater Hyderabad.
If you are traveling to Hyderabad on business — as is increasingly the case now — it is easy to miss the 400-year-old Hyderabad. The city that immediately hits the eye is a sprawling metropolis of shopping malls and office buildings with glass facades. The whole of the city seems to be under construction or renovation and the roads are jammed because flyovers are being constructed. It is a magnificent city in many senses. The "old city" that was once the seat of the Nizam, the ruler of the largest and the most opulent "princely state", and the twin city of Secunderabad where the British maintained a cantonment to keep the army within striking distance of the Nizam can be seen only if you take the time out to see them. Hyderabad's many epithets include the City of Pearls, the City of Nawabs, the Biryani City and, because of its high-tech draw, Cyberabad.