Nizamabad is a city in the Indian state of Telangana. Nizamabad is a major urban agglomeration and third largest city in the state. It is governed by municipal corporation and is the headquarters of the Nizamabad district. Although previously part of Hyderabad State and then Andhra Pradesh state, Nizamabad became the part of newly formed state of Telangana by Andhra Pradesh Reorganisation Act, 2014. Nizamabad was founded in the year 1905[5] when Nizam's Dominion were recognized, where up to it was known as Indur. The Nizam of Hyderabad ruled over the Deccan region during 18th century. Nizamabad was a part of princely State of Hyderabad in 1724 and continued to be part of the Nizam's dominions until 1948. After India gained independence in 1947, the Indian Armed Forces annexed Hyderabad and ended the rule of the Nizam in Operation Polo.[9] It was during 1876 Nizamabad became a separate district when the districts in Hyderabad State were reorganized by Salar Jung-I, the then prime minister. In 1905 the railway line between Secunderabad and Manmad was laid. The city was named after Nizam ul Mulk, the fourth Nizam of Hyderabad state. And during the reign of last Nizam, Nizam Sagar dam was constructed in 1923 across the Manjira River at the village of Achampet which irrigates 250,000 acres (1,000 km2; 390 sq mi) of land in Nizamabad District. Nizamabad Fort is situated on the southwest of the city which was built by Rashtrakuta Kings in around 10th century, the fort was captured by Asaf Jahis who were the Nizams of Hyderabad, who then rebuilt the fort. Archaeological and Heritage Museum was opened in October 2001 and is situated in the Tilak Garden premises which is opened seasonally. The Museum houses various artifacts and antiquities representing the evolution of human civilization from Paleolithic to Vijayanagara Empire(i.e. 16th. A.D). The Museum is divided into three sections, namely Archaeological Section, Sculptural gallery and Bronze and Decorative gallery. Bidri articles and arms and weapons of extensive variety are also exhibited. Alisagar is a park and tourist attraction which is 13 km from Nizamabad and 2 km (1.2 mi) off the Nizamabad-Bodhan road. The garden is spread across a large 33 acres of area,it has a deer park, trekking and water sports facility. It also has a hilltop guest house built by Nizam and is under renovation as of 2015. Ashok Sagar is a lake, park and tourist attraction situated in Jankampet area, 07 km from centre of the city. It has a beautiful rock garden with illuminated rocks and has excellent boating facilities. Badapahad dargah is one of the oldest Muslim pilgrim centres, built in the memory of Hazrat Syed Hussaini, built on top of a hillock, located at a distance of 38 km from the city.