Pulicat (Pazhaverkadu) is a historic seashore town in Thiruvallur District, of Tamil Nadu state, South India. It is about 60 km north of Chennai and 3 km from Elavur, on the barrier island of Sriharikota, which separates Pulicat Lake from the Bay of Bengal. Pulicat lake is a shallow salt water lagoon which stretches about 60 kilometers (37 mi) km along the coast.