Introduction:
The mangrove cover in India plays a crucial role in coastal ecosystems and provides numerous ecological, economic, and social benefits. It helps in stabilizing coastal areas, protecting against erosion, supporting biodiversity, and providing livelihoods for local communities. Among the Indian states and union territories, West Bengal has the maximum percentage of mangrove cover.

Explanation:

Mangrove Cover in India:
- Mangroves are salt-tolerant plants that grow in coastal saline or brackish water habitats. They are found in various states and union territories of India.
- The mangrove cover in India is estimated using satellite imagery and remote sensing techniques. The data is then analyzed to determine the percentage of mangrove cover in different regions.

Mangrove Cover in West Bengal:
- West Bengal, located on the eastern coast of India, has a significant mangrove cover. The state encompasses the Sundarbans, a vast mangrove forest shared with Bangladesh.
- The Sundarbans is the largest continuous mangrove forest in the world and is a UNESCO World Heritage Site. It covers a substantial area in West Bengal and contributes significantly to the state's mangrove cover.

Importance of Mangrove Cover:
- Mangroves play a vital role in coastal protection by acting as a natural barrier against storm surges, tidal waves, and erosion.
- They provide habitat and nursery grounds for a wide range of marine and terrestrial species, including fish, birds, and mammals.
- Mangroves aid in carbon sequestration, helping to mitigate climate change by absorbing and storing carbon dioxide.
- They also support the livelihoods of local communities through fishing, honey collection, and tourism.

Other States and Union Territories:
- Gujarat, another coastal state in India, also has a significant mangrove cover. It is known for the Banni grasslands and the Gulf of Kutch mangroves.
- Andaman and Nicobar Islands, a union territory, have extensive mangrove forests. These islands are home to diverse mangrove species and rich biodiversity.
- Odisha, located on the eastern coast, also has a considerable mangrove cover. The Bhitarkanika National Park, a renowned mangrove ecosystem, is situated in Odisha.

Conclusion:
Among the given options, West Bengal has the maximum percentage of mangrove cover in India. The Sundarbans, a UNESCO World Heritage Site, contributes significantly to the mangrove cover in West Bengal. Mangroves are essential for coastal protection, biodiversity conservation, and providing livelihood opportunities for local communities. It is crucial to conserve and sustainably manage these valuable ecosystems for their numerous benefits.