Udayavarthiyanur is a village in Udayarpalayam tehsil in district of Ariyalur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Udayavarthiyanur was 2,392 which includes 1,163 males and 1,229 females. Udayavarthiyanur covers 959.86 ha area. Pincode of Udayavarthiyanur is 621701.