Manjankaranai is a village in Uthukkottai tehsil in district of Thiruvallur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Manjankaranai was 1,088 which includes 527 males and 561 females. Manjankaranai covers 226.04 ha area. Pincode of Manjankaranai is 601102.