Udayanatham (East) is a village in the Udayarpalayam taluk of Ariyalur district in the Indian state of Tamil Nadu.
The local government consists of the Jayankondam assembly constituency and the Chidambaram (Scheduled Caste) parliamentary assembly.
Government High Sec School is there.
A government hospital is there.
Government-owned businesses include State Bank Of India, Primary Agriculture Company Bank, Hand Loom Weaver Society, Rani Mahal (Marriage Hall). Other local businesses include grocery stores, tea stalls, a hardware store, mortgage stores, a small mechanic shop, small medical facilities, and a bakery.
Pujas and festivals are held on a regular basis.