Udayamudaiyan is a village in Pattukkottai tehsil in district of Thanjavur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Udayamudaiyan was 479 which includes 221 males and 258 females. Udayamudaiyan covers 104.51 ha area. Pincode of Udayamudaiyan is 614723.