Which one of the following State of India shares its border with Bhutan?

Sikkim

The correct answer is Option (4) → Sikkim

The Indian state that shares its border with Bhutan is Sikkim.

Bhutan shares its international border with four Indian states, covering a total distance of approximately 699 km. These states are:

• Sikkim (to the West)
• West Bengal (to the Southwest/South)
• Assam (to the South/Southeast)
• Arunachal Pradesh (to the East)

Why the other options are incorrect:

• Tripura: This state is surrounded by Bangladesh on three sides and shares domestic borders with Assam and Mizoram. It does not touch Bhutan.
• Manipur: Located in Northeast India, it shares an international border with Myanmar to the east.
• Mizoram: This state shares international borders with Bangladesh to the west and Myanmar to the east and south.