Thirumandurai is a village in Thiruvidaimarudur tehsil in district of Thanjavur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thirumandurai was 1,080 which includes 524 males and 556 females. Thirumandurai covers 176.94 ha area. Pincode of Thirumandurai is 612102.