Vethiyarvettu 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 Vethiyarvettu was 3,503 which includes 1,746 males and 1,757 females. Vethiyarvettu covers 1234.06 ha area. Pincode of Vethiyarvettu is 612903.