The Deomali is the highest mountain peak of ______.

The correct answer is Odisha.

Let's understand why Deomali is associated with Odisha and why this answer is correct.

What is Deomali?
Deomali is the highest mountain peak in the state of Odisha, India. It stands at an elevation of approximately 1,672 metres (5,486 feet) above sea level.

Where is Deomali located?
Deomali is located in the Koraput district of Odisha, in the Eastern Ghats mountain range. The Eastern Ghats run along the eastern coast of India and pass through several states including Odisha, Andhra Pradesh, and Tamil Nadu.

Why not the other options?
Let us briefly examine why the other options are incorrect:

• Assam – The highest peak in Assam is Kang Peak (Kangto) located in the Himalayas, not Deomali.
• West Bengal – The highest peak in West Bengal is Sandakphu at 3,636 m, located in the Himalayas.
• Bihar – Bihar is largely a flat, plains-dominated state (part of the Indo-Gangetic Plain) and does not have Deomali as its highest point.

Key Fact to Remember:
Deomali → Eastern Ghats → Koraput district → Odisha = Highest peak of Odisha.

Therefore, Deomali is the highest mountain peak of Odisha.