Kol to Aligarh to Harigarh: Name-Changing Moments of the UP District | 12th Century to 2023
Aligarh to Harigarh: Vinesh Pal Singh, a lawyer, said the original name of Aligarh in the 12th century was Kol. In those times, Kol used to be a major city of the Delhi Sultanate and Mughal Empire and used to serve as a prime economic centre
Source: news18.com