District:
1. Jorhat
Pincode:785001
2. Nagaon
Pincode: 782001
3. Goalpara
Pincode: 783101
4. Kamrup Metropolitan
Pincode: 781025
5. Kokrajhar
Pincode: 783370
6. Cachar
Pincode: 788001
7. South Salmara-Mankachar
Pincode: 783131
8. Sonitpur
Pincode: 784001
9. Charaideo
Pincode: 782445
10. Dhubri
Pincode: 783301
11. Golaghat
Pincode: 785621
12. Karimganj
Pincode: 788710
13. Morigaon
Pincode: 782105
14. Baksa
Pincode: 781364
15. West Karbi Anglong
Pincode: 782413
16. Majuli
Pincode: 785104
17. Dibrugarh
Pincode: 786001
18. Hailakandi
Pincode: 788151
19. Karbi Anglong
Pincode: 782410
20. Chirang
Pincode: 783385
21. Sivasagar
Pincode: 785640
22. Udalguri
Pincode: 784509
23. Bongaigaon
Pincode: 783380
24. Nalbari
Pincode: 781335
25. Dima Hasao
Pincode: 788819
26. Kamrup
Pincode: 781001
27. Lakhimpur
Pincode: 784160
28. Darrang
Pincode: 784125
29. Tinsukia
Pincode: 786125
30. Dhemaji
Pincode: 787057
31. Barpeta
Pincode: 781301