Q. Kaliveli Lake, recognized by the IUCN for its ecological importance, is located in which Indian state?
Answer: Tamil Nadu
Notes: Kaliveli Lake, a large coastal wetland in Viluppuram District, Tamil Nadu, lies on the Coromandel Coast near the Bay of Bengal. It is a seasonal freshwater to brackish lagoon, important for migratory birds, and recognized nationally and internationally by IUCN.