Chilika Lake is a brackish water lagoon, which means it contains a mixture of fresh water and salt water. It is one of the largest coastal lagoons in India and is located in Odisha. Chilika is internationally famous for its rich biodiversity, migratory birds, and aquatic life, especially dolphins. It is also an important source of livelihood for many local fishing communities. In Odisha PSC and other competitive exams, Chilika Lake is a very important topic because questions related to its location, nature, ecological value, and tourism significance are frequently asked in general knowledge and Odisha-specific sections.