Indore, is the most populous and the largest city in the Indian state of Madhya Pradesh. the Indore Metropolitan Areas population is the states largest. The city is distributed over a land area of just 530 square kilometers making Indore the most densely populated major city in the central province. It comes under Tier 2 cities in India. Indore traces its roots to its 16th century founding as a trading hub between the Deccan and Delhi. The city and its surroundings came under Hindu Maratha Empire on 18 May 1724 after Maratha Peshwa Baji Rao I assumed the full control of Malwa. During the days of the British Raj, Indore State was a 19 Gun Salute princely state ruled by the Maratha Holkar dynasty, until they acceded to the Union of India. Indore served as the capital of the Madhya Bharat from 1950 until 1956. Indores financial district, anchored by central Indore, functions as the financial capital of the Madhya Pradesh and is home to the Madhya Pradesh Stock Exchange, Indias third oldest stock exchange. Indore has been selected as one of the 100 Indian cities to be developed as a smart city under Smart Cities Mission, it is an urban development vision to integrate multiple information and communication technology. It has also qualified the first round of Smart Cities Mission and has been selected as one of the first twenty cities to be developed as Smart Cities. Indore has been elected as the cleanest city of India as per the Swachh Survekshan 2017.