(See section 24)
1. Intelligence Bureau.
1[2. Research and Analysis Wing including its technical wing namely, the Aviation Research Centre of the Cabinet Secretariat.]
3. Directorate of Revenue Intelligence.
4. Central Economic Intelligence Bureau.
5. Directorate of Enforcement.
6. Narcotics Control Bureau.
7. 2***.
8. Special 3[Frontier] Force of the Cabinet Secretariat.
9. Border Security Force.
10. Central Reserve Police Force.
11. Indo-Tibetan Border Police.
12. Central Industrial Security Force.
13. National Security Guards.
14. Assam Rifles.
4[15. Sashtra Seema Bal.]
5[16. Directorate General of Income-tax (Investigation).]
5[17. National Technical Research Organisation.]
5[18. Financial Intelligence Unit, India.]
6[19. Special Protection Group.
20. Defence Research and Development Organisation.
21. Border Road Development Board.
7* * * * *]
8[22. National Security Council Secretariat.]
9[23. Central Bureau of Investigation.
24. National Investigation Agency.
25. National Intelligence Grid.]
10[26. Strategic Forces Command.]