GovernanceDMK-AIADMK alternation
Ariyalur district carved out of Perambalur
· Ariyalur

Carved from Perambalur district in 2001, Ariyalur district was formed again on 23 November 2007.
On 1 January 2001 Ariyalur district was separated from Perambalur district. It was afterwards reabsorbed, then constituted once more as a district in its own right on 23 November 2007. Ariyalur town serves as its headquarters. The district is noted for cement manufacturing and for an abundance of prehistoric fossils.
