| Sr.No | Zone/ Sub-Zone Name | Details of CPIO |
|---|---|---|
| 1 | Headquarters | CPIO, 'A' - Block, Pravartan Bhawan, Dr. APJ Kalam Road, New Delhi - 110001 |
| 2 | Delhi-I (DLZO-I) | CPIO, 'C' - Block, Pravartan Bhawan, Dr. APJ Kalam Road, New Delhi - 110001 |
| 3 | Delhi-II (DLZO-II) | CPIO, 'C' - Block, Pravartan Bhawan, Dr. APJ Kalam Road, New Delhi - 110001 |
| 4 | Lucknow (LKZO) | CPIO, Princeton Business Park, 2nd Floor, 16 - Ashok Marg,(Near SIDBI), Lucknow - 226001 |
| 5 | Patna (PTZO) | CPIO, Bank Road, Chandpura Place, Patna - 800001 |
| 6 | Ranchi (RNZO) | CPIO, Plot No. 1502/B, Airport Road, Hinoo, Ranchi, Jharkhand - 834002 |
| 7 | Allahabad Zone (ALSZO) | CPIO, 6th Floor, CTO Compound, BSNL Building, Nawab Yusuf Road, Civil Lines, Prayagraj - 211001 |
| 8 | Kolkata-I (KLZO-I) | CPIO, CGO Complex, 3rd M.S.O. Building, 6th Floor, C & D Wing, DF Block, Salt Lake, Sector - I, Kolkata - 700064 |
| 9 | Kolkata-II (KLZO-II) | CPIO, CGO Complex, 3rd M.S.O. Building, 6th Floor, C & D Wing, DF Block, Salt Lake, Sector - I, Kolkata - 700064 |
| 10 | Bhubaneswar (BBZO) | CPIO, 209, Palika Plaza (Phase II), M.T.H. Compound, Indore (M.P.) – 452001 |
| 11 | Guwahati (GWZO-I) | CPIO, House No.20, Bye Lane No.1, Rajgarh Road, Chandmari, Guwahati – 781003 |
| 12 | Guwahati (GWZO-II) | CPIO, House No.20, Bye Lane No.1, Rajgarh Road, Chandmari, Guwahati – 781003 |
| 13 | Imphal Zone (IMSZO) | CPIO, Sangakpham, Chingmeirong, Imphal-795001 |
| 14 | Itanagar Zone (ITSZO) | CPIO, House No.20, Bye Lane No.1, Rajgarh Road, Chandmari, Guwahati – 781003 |
| 15 | Kohima Zone (KHSZO) | CPIO, House No.20, Bye Lane No.1, Rajgarh Road, Chandmari, Guwahati – 781003 |
| 16 | Shilong Zone (SGSZO) | CPIO, ABRI Building, Langkyrding, Mawpat Shillong-793012 |
| 17 | Agartala Zone (AGSZO) | CPIO, H. No. 039952, Ward No. 03, Nutan Nagar, Co-Operative, Airport Road, Agartala - 799009 |
| 18 | Aizawl Zone (AZSZO) | CPIO, House No.20, Bye Lane No.1, Rajgarh Road, Chandmari, Guwahati – 781003 |
| 19 | Gangtok Zone (GKSZO) | CPIO, Behind Krishi Bhawan, Milan Gaon, Upper Tadong, Gangtok - 737102 |
| 20 | Gurugram (GNZO) | CPIO, 1st Floor, U.T. GOVT. Press Building, Madhya Marg, Sector - 18, Chandigarh - 160018 |