Explanation:

- Mizoram: ?? This state has the highest percentage of forest cover in relation to its area in India. Forests cover over 85% of Mizoram's geographical area, making it the greenest state in the country.

- Assam: Known for its rich biodiversity, Assam has substantial forest coverage but not the highest percentage relative to its total area compared to Mizoram.

- Odisha: While Odisha has a significant amount of forested land, especially with its extensive network of protected areas and wildlife sanctuaries, it's not the leader in terms of percentage cover relative to its area.

- Maharashtra: Though it has vast forested regions, including national parks and tiger reserves, the percentage of forest cover compared to its total area is less than that of Mizoram.