Which of the following is the largest lagoon lake situated on the east coast of India?

1. A

   Pulicat

   Pulicat Lake on the Andhra–Tamil Nadu coast is a large lagoon, but it is smaller than Chilika and is not keyed as the largest here.

2. B

   Chilka

   Chilika (Chilka) on the Odisha coast is India’s largest brackish lagoon. That is the official key.

3. C

   Kulleru

   Kolleru (the paper’s ‘Kulleru’) in Andhra Pradesh is a freshwater lake between the Godavari and Krishna deltas, not a coastal lagoon of this rank.

4. D

   Kilivali

   Kaliveli (Kilivali) in Tamil Nadu is a much smaller wetland/lagoon and not the largest on the east coast.

Summary. Official key is (b) Chilka. Chilika is a Ramsar site and a classic east-coast lagoon behind a sand spit, famous for Irrawaddy dolphins and migratory birds. Pulicat is second among large lagoons; Kolleru is inland freshwater. Honour the stored letter (b).