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Government Of Assam Border Protection and Development Directorate of Border Protection and Development

Boundaries of Assam

International Border Areas

Length of International Boundary (Source-SOI)

Indo-Bangla - 267.5 KM
Indo-Bhutan - 265.8 KM
Total - 533.3 KM

There are eight (8) nos. of Districts along the Inter-national boundary with Bangladesh and Bhutan.
District wise length of International Boundary-

  • Baksa-Bhutan - 90 KM
  • Chirang-Bhutan - 70 KM
  • Kokrajhar-Bhutan - 40 KM
  • Udalguri-Bhutan - 80 KM
  • Karimganj-Bangla - 3 KM
  • Cachar-Bangla - 70 KM
  • Dhubri-Bangla - 90 KM
  • South Salmara Mankachar-Bangla - 63.00 KM

Inter-State Border Areas

Length of Inter-state Boundary (Source–SOI)

  • Assam-Nagaland - 512.1 Km
  • Assam-Arunachal Pradesh - 804.1 Km
  • Assam-Manipur - 204.1 Km
  • Assam-Mizoram - 164.6 Km
  • Assam-Tripura - 46.3 Km
  • Assam-Meghalaya - 884.9 Km
  • Assam-West Bengal - 127.0 Km

Total Length: 2741.3 Km

There are 24 (twenty four) nos. of Districts along the Inter-State boundary with the neighbouring states.

  1. Sivasagar-Nagaland - 57.80 Km
  2. (i) Charaideo-Nagaland - 34.00 Km (ii) Charaideo-Arunachal Pradesh - 26.80 KM
  3. Jorhat-Nagaland - 128.50 Km
  4. Golaghat-Nagaland - 126.50 Km
  5. Udalguri-Arunachal Pradesh - 27.70 Km
  6. Sonitpur-Arunachal Pradesh - 71.90 Km
  7. Biswanath-Arunachal Pradesh - 77.30 Km
  8. Lakhimpur-Arunachal Pradesh - 108.80 Km
  9. Dhemaji-Arunachal Pradesh - 177.20 Km
  10. Tinsukia-Arunachal Pradesh - 282.80 Km
  11. Dibrugarh-Arunachal Pradesh - 31.60 Km
  12. (i)Dima Hasao-Manipur - 73.50 Km (ii)Dima Hasao-Meghalaya - 124.90 Km (iii)Dima Hasao-Nagaland-45.60Km
  13. (i)Cachar-Manipur-130.60 Km (ii)Cachar-Mizoram-52.90 Km (iii)Cachar-Meghalaya-19.50 Km
  14. Hailakandi-Mizoram - 99.10 Km
  15. (i) Karimganj-Mizoram - 12.60 Km (ii) Karimganj-Tripura - 46.30 Km
  16. Karbi Anglong-Nagaland - 119.70 Km
  17. West Karbi Anglong-Meghalaya - 162.10 Km
  18. Morigaon-Meghalaya - 14.50 Km
  19. Kamrup(M)-Meghalaya - 79.70 Km
  20. Kamrup-Meghalaya - 200.90 Km
  21. Goalpara-Meghalaya - 169.80 Km
  22. (i)Dhubri-Meghalaya - 15.18 Km (ii) Dhubri-West Bengal - 72.90 Km
  23. South Salmara Mankachar-Meghalaya - 98.32 Km
  24. Kokrajhar-West Bengal - 54.10 Km