 Constructed by Robert Chisholm between 1874 and 1879, the Senate building is considered to be one of the best and oldest examples of Indo-Saracenic architecture in India.Robert Chisholm was a 19th-century British architect who is considered to be one of the pioneers of Indo-Saracenic architecture.Initially designing buildings using the Renaissance and Gothic styles of architecture, Chisholm switched over to Indo-Saracenic with the construction of the PWD buildings of the Chepauk Palace in 1871.