Question:

Which neighbouring country has longest running land border with India ?

Show Hint

Bangladesh border is about 4,096 km, longer than the China border.
Updated On: Oct 1, 2026
  • Bangladesh
  • Pakistan
  • Srilanka
  • China
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The Correct Option is A

Solution and Explanation

Step 1: Understanding the Question:
We need the neighbour that shares the longest land border with India.

Step 2: Key Facts:
India's land border with Bangladesh is about 4,096 km. With China it is about 3,488 km, and with Pakistan about 3,323 km.

Step 3: Check option 2 and option 4.
Pakistan (about 3,323 km) and China (about 3,488 km) are both shorter than the Bangladesh border. So they are wrong.

Step 4: Check option 3.
Sri Lanka has no land border with India. It is separated by the sea, so option 3 is wrong.

Step 5: Check option 1.
Bangladesh has the longest border, about 4,096 km. So option 1 is correct.

Final Answer:
Bangladesh shares the longest land border with India. This is option 1. \[ \boxed{\text{Option 1}} \]
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