Explanation:

- Deomali is indeed a mountain peak situated in the Eastern Ghats range.

- Option 4: Odisha – Deomali is the highest mountain peak in Odisha. It stands at an elevation of approximately 1,672 meters.

- Option 1: Assam – While known for its hills, notably in the Karbi Anglong and Dima Hasao districts, Deomali is not located here.

- Option 2: West Bengal – Home to part of the Himalayas, such as Sandakphu, but not Deomali.

- Option 3: Bihar – Has places like the Rajgir Hills, but is not where Deomali is located.

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