Ajmer is a city in the north-western Indian state of Rajasthan. It serves as the administrative headquarters of the Ajmer district and Ajmer division. It lies at the centre of Rajasthan, earning it the nickname 'the Heart of Rajasthan'. Ajmer is surrounded by the Aravalli Mountains. Ajmer has been a municipality since 1869. Ajmer has been selected as one of the heritage cities for the HRIDAY and Smart City Mission schemes of the Government of India.