Coral reefs are not found in India, as they require warm, tropical waters.

The largest mangrove forest in India is located in the Sundarbans, which is shared between India and Bangladesh.

Marshes are typically freshwater ecosystems, so they do not have high levels of salinity.

Pollution, climate change, and deforestation are all major threats to wetland ecosystems in India.

The Royal Bengal Tiger, Gangetic Dolphin, and Olive Ridley Turtle are all key species in the Sundarbans mangrove forest.

Vembanad Lake, Ashtamudi Lake, and Periyar Lake are all major wetland ecosystems in the state of Kerala.

Pulicat Lake is a major wetland ecosystem in the state of Tamil Nadu.

Kolleru Lake is a major wetland ecosystem in the state of Andhra Pradesh.

Chilika Lake is a major wetland ecosystem in the state of Odisha.

Sundarbans is a major wetland ecosystem in the state of West Bengal.

Rann of Kutch is a major wetland ecosystem in the state of Gujarat.

Lonar Lake is a major wetland ecosystem in the state of Maharashtra.

Tungabhadra Dam is a major wetland ecosystem in the state of Karnataka.

Pakhal Lake is a major wetland ecosystem in the state of Telangana.

Keoladeo National Park is a major wetland ecosystem in the state of Rajasthan.