During the regime of Nawabs, the natives were invited to an Islamic function of Milad-un-nabi without regard to caste, color or creed. It was organised by the ruling Nawabs for a period of seven days in the month of Rabi al-awwal.
In 1806, Amir Khan conquered it, taking it from Balvant Rao Holkar. The British government captured it in turn. Under the treaty of 1817, the British government returned it to Amir Khan. Tonk was founded in 1818 by an Afghan military leader who was granted land by the ruler of Indore.