Question

sikkim, west bengal, assam and arunachal pradesh have a common frontier

Answer 1

Bhutan is the right answer

Answer 2

HERE IS YOUR ANSWER
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Sikkim, west bengal, Assam and Arunachal Pradesh have common
frontiers with

1》 Nepal
2》 Bangladesh
3》 Bhutan
4》Myanmar

BHUTAN IS HAVE A COMMON FRONTIER.

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please mark it brainliest please please please