Panjanathikottai is a village in Orathanadu tehsil in district of Thanjavur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Panjanathikottai was 1,318 which includes 634 males and 684 females. Panjanathikottai covers 273.12 ha area. Pincode of Panjanathikottai is 614904.