Mazalak Ahmed was established in 1494 AD and the capital city of Nizamshah became known as Ahilyanagar city by his name. Since Ahilyanagar city was headquartered in the district, Ahmednagar(Ahilyanagar) was given the name of the district. After the end of Peshwa, Ahilyanagar district was formed in 1822. At that time the border of Ahilyanagar district was from Wani in present day Nashik district and second end to the district of Solapur in Karmala. Due to the formation of Nashik and Solapur districts in 1869, Wani and Karmala were excluded from Ahilyanagar district.