Ujjain ( (listen), Hindustani pronunciation: [ʊd͡ːʒɛːn]) is a city in Ujjain district of the Indian state of Madhya Pradesh. It is the fifth-largest city in Madhya Pradesh by population and is the administrative centre of Ujjain district and Ujjain division. It is one of the Hindu pilgrimage centres of Sapta Puri famous for the Kumbh Mela held there every 12 years. The famous temple of Mahakaleshwar Jyotirlinga is located in the center of the city.
An ancient city situated on the eastern bank of the Shipra River, Ujjain was the most prominent city on the Malwa plateau of central India for much of its history. It emerged as the political centre of central India around 600 BCE. It was the capital of the ancient Avanti kingdom, one of the sixteen mahajanapadas. It remained an important political, commercial and cultural centre of central India until the early 19th century, when the British administrators decided to develop Indore as an alternative to it.