The Sansad Bhavan (Parliament House) is located in New Delhi. It was designed byEdwin Lutyens and Herbert Baker, who were responsible for planning and construction of New Delhi by British government. The construction of buildings took six years and the opening ceremony was performed on 18 January 1927 by the then Viceroy and Governor-General of India, Irwin. The construction costs for the building were ₹8.3 million (US$130,000). The parliament is 560 feet (170 m) in diameter and covers an area of 6 acres (2.4 ha). The Central hall consists of the chambers of Lok sabha, Rajya Sabha and the Library hall. Surrounding these three chambers is the four storied circular structure providing accommodations for members and houses Parliamentary committees, offices and the Ministry of Parliamentary Affairs.[9] General layout of the buildingEdit The centre and the focus of the building is the Central Hall. It consists of chambers of Lok Sabha, Rajya Sabha and the Library Hall and between them lie garden courts. Surrounding these three chambers is the four storyed circular structure providing accommodations for Ministers, Chairmen, Parliamentary committees, Party offices, important offices of Lok Sabha and Rajya Sabha Secretariats and also the offices of the ministry of Parliamentary affairs. The Central Hall is circular in shape and the dome is 98 feet (29.87 meters) in diameter. It is a place of historical importance. The Indian Constitutionwas framed in the Central Hall. The Central Hall was originally used in the library of erstwhile Central Legislative Assembly and the Council of States. In 1946, it was converted and refurbished into Constituent Assembly Hall. At present, the Central Hall is used for holding joint sittings of both the houses of parliament and also used for address by the President in the commencement of first session after eachgeneral election.