Rupnagar also spelled Ropar or Rupar, is a city and a municipal council in Rupnagar district in the Indian state of Punjab. Ropar is a newly created fifth "Divisional Headquarters" of Punjab comprising Ropar, Mohali, and its adjoining districts. The ancient town of Rupnagar is said to have been named by a Raja called Rokeshar, who ruled during the 11th century and named it after his son Rup Sen. It is also one of the bigger sites belonging to the Indus Valley Civilization. Rupnagar is nearly 50 km to the northwest of Chandigarh (the nearest airport). It is bordered by Himachal Pradesh to the north and Shahid Bhagat Singh Nagar district (formerly known as Nawanshahr district) to its west. The major cities in Ropar District are Morinda, Kurali, Nangal, Anandpur Sahib and Chamkaur Sahib and Haveli kalan. The town of Mohali was once part of Ropar District before it became a separate district in 2006. The Bhakra Dam in Nangal lies on the boundary with the neighbouring state of Himachal Pradesh. Dadhi is one of the most important villages of the district, particularly because of Gurudwara Sri Hargobindsar Sahib. There are many historical places in Ropar and religious places including gurdwaras such as: Bhhatha Sahib, Tibbi Sahib, AnandPur Sahib and Sadabarat Sahib. There is an Archaeological Museum in the city which is about 40 km north east of Chandigarh. It was opened in the year 1998 for general public. The museum exhibits the archaeological remains of excavated site in the city, the first Harappan site of Independent India. The city has one of the three important wetlands of the Punjab State known as Ropar Wetland. The area has a large number of birds ,mammals and vegetation cover. It has at least 9 mammal, 154 bird, 35 fish, 9 arthropod, 11 rotifer, and 10 protozoan species. This important ecological zone is located in the Shivalik foothills of the Lower Himalayas and was created in 1952 on the Sutlej River, in the Punjab state of India, by building a head regulat The total area of the Wetland is 1365 ha. The wetland is surrounded by Shivalik hills in the North West and by plain area in the South and South East.