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West Bengal Postal Circle Rationalization 2026: New Siliguri, Diamond Harbour and Bongaon Divisions

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SEO TitleWest Bengal Postal Circle 2026: Siliguri, Diamond Harbour, Bongaon
DoP creates Siliguri, Diamond Harbour and Bongaon Divisions, merges Central Kolkata and adds 4 Sub-Divisions in West Bengal Circle from 1 Nov 2026.
URL Slug/west-bengal-postal-circle-rationalization-2026-new-divisions
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CategoryIndia Post Circulars / Administrative Changes
Image Alt TextWest Bengal Postal Circle rationalization 2026 new Siliguri Diamond Harbour Bongaon divisions

Quick tips: Keep one H1 and use the H2s below. Place one Google Ads unit after the quick facts and one before the FAQ (not inside tables). Track course-link clicks in GA4 as a conversion. Add FAQ schema. Link to your GDS to MTS West Bengal Circle page, your earlier WB PM/MG result post and the all-India roundup.

What Has Changed in West Bengal Postal Circle?

The West Bengal Postal Circle, which also covers Sikkim and the Andaman & Nicobar Islands, is getting three new divisions: Siliguri, Diamond Harbour and Bongaon. At the same time, Central Kolkata Division is being merged into North Kolkata and East Kolkata Divisions. Four new sub-divisions are also being created.

The Office Memorandum (No. Y-38/20/2026-PE-II-DOP) was issued by the Establishment Division at Dak Bhawan on 12 October 2026. The changes start from 1 November 2026.

If you are preparing for an India Post Departmental Exam like GDS to MTS, GDS to Postman, MTS to PA or Postman to PA in the West Bengal Circle, keep these new names handy.

Quick Facts

  • Circle: West Bengal (including Sikkim and A&N Islands)
  • New Postal Divisions (3): Siliguri (North Bengal Region), Diamond Harbour and Bongaon (Kolkata Region)
  • Division merged: Central Kolkata (into North Kolkata and East Kolkata)
  • New Sub-Divisions (4): Namchi (Sikkim), A&N Islands-II (Sri Vijayapuram), Bagnan (Howrah) and Deganga
  • New Postal Region: None
  • Effective date: 1 November 2026
  • Circle proposal: dated 25.09.2026
  • Finance concurrence: Diary No. 125/2026-27/FA-CS(P) dated 07.10.2026
  • Signed by: Dushyant Mudgal, DDG (Establishment)

The 3 New Divisions and the Central Kolkata Merger

1. Siliguri Postal Division (split from Darjeeling, North Bengal Region)

The new Divisional Office will be set up inside the existing departmental building of Siliguri HO.

OfficesDarjeeling (before)New SiliguriDarjeeling (after)
Sub-Divisions312
Head Offices211
Sub-Offices673136
Branch Offices15646110

2. Diamond Harbour Postal Division (from Baruipur and South Kolkata, Kolkata Region)

The office will be inside the existing departmental building of Diamond Harbour HO.

OfficesBaruipur (before)South Kolkata (before)New Diamond HarbourBaruipur (after)South Kolkata (after)
Sub-Divisions93453
Head Offices22112
Sub-Offices73102494482
Branch Offices69603123840

Totals match: 175 Sub-Offices and 696 Branch Offices before and after.

3. Bongaon Postal Division (from Barasat and Barrackpore, Kolkata Region)

The office will be inside the existing departmental buildings of Bongaon MDG.

OfficesBarasat (before)Barrackpore (before)New BongaonBarasat (after)Barrackpore (after)
Sub-Divisions53333
Head Offices22022
Sub-Offices7788414282
Branch Offices41934191237*33

*Barasat’s 237 BOs include 8 BOs from East Kolkata Division.

Interesting point: The new Bongaon Division will have no Head Office of its own as per the table.

4. Central Kolkata Division merged

Central Kolkata Division is merged into North Kolkata and East Kolkata Divisions.

OfficesEast Kolkata (before)North Kolkata (before)Central Kolkata (before)East Kolkata (after)North Kolkata (after, merged)
Sub-Divisions22233
Head Offices12122
Sub-Offices5463356785
Branch Offices8*0000

*East Kolkata’s 8 BOs move to Barasat Division.

The 4 New Sub-Divisions

(HO = Head Office, SO = Sub-Office, BO = Branch Office.)

1. Namchi Sub-Division (Sikkim Division)

Namchi Sub-Division, with headquarters at Namchi, is made by reorganising the Sikkim sub-divisions, which are renamed Gangtok and Gayzing. The Namchi office will use vacant departmental space at Gangtok Head Post Office.

Sub-DivisionHO / SO / BO (before)HO / SO / BO (after)
Gangtok1 / 13 / 961 / 8 / 59
Gayzing0 / 10 / 920 / 8 / 66
Namchi (new)–0 / 7 / 63
Total1 / 23 / 1881 / 23 / 188

2. A&N Islands-II Sub-Division (Andaman & Nicobar Islands Division)

The single A&N Islands Sub-Division is split into two. The new one has headquarters at Sri Vijayapuram and will sit in the existing Sri Vijayapuram HO building.

Sub-DivisionHO / SO / BO (before)HO / SO / BO (after)
A&N Islands-I1 / 23 / 731 / 11 / 39
A&N Islands-II (new)–0 / 12 / 34
Total1 / 23 / 731 / 23 / 73

3. Bagnan Sub-Division (Howrah Division, South Bengal Region)

The Bagnan office will work from the existing rented building of Bagnan SO.

Sub-DivisionHO / SO / BO (before)HO / SO / BO (after)
Howrah 1st2 / 35 / 82 / 36 / 11
Howrah 2nd0 / 29 / 550 / 28 / 47
Amta0 / 11 / 800 / 9 / 69
Uluberia0 / 7 / 1070 / 5 / 63
Bagnan (new)–0 / 4 / 60
Total2 / 82 / 2502 / 82 / 250

4. Deganga Sub-Division (Barasat area, Kolkata Region)

Deganga Sub-Division will work from the Deganga SO building.

Sub-DivisionHO / SO / BO (before)HO / SO / BO (after)
Barasat1 / 18 / 731 / 22 / 64
Basirhat 1st0 / 7 / 840 / 7 / 84
Basirhat 2nd1 / 13 / 891 / 13 / 89
Habra0 / 19 / 790 / 16 / 74
Bangaon0 / 20 / 940 / 17 / 68
Deganga (new)–0 / 8 / 49
Total2 / 77 / 4192 / 83 / 428
  • 6 Sub-Offices and 1 BO come into Barasat Sub-Division from Barrackpore Division.
  • 8 BOs come into Barasat Sub-Division from East Kolkata Division.

Which sub-divisions go to the new Bongaon Division?

The OM does not list this by name, but the numbers match exactly:

  • Bongaon Division (3): Habra, Bangaon and Deganga → 41 SOs, 191 BOs, no HO
  • Barasat Division (3): Barasat, Basirhat 1st and Basirhat 2nd → 2 HOs, 42 SOs, 237 BOs

Note: The OM text says Deganga is created “under Barasat Postal Division”, but going by the numbers it will fall in the new Bongaon Division once that split happens. The Circle’s final orders will confirm this.

What It Means for Staff

  • Group B and C staff: The Head of the Circle will redeploy them, in consultation with CIFA and the Head of Region/Divisional Head.
  • Willingness first: Staff will be moved based on their willingness or request, to keep costs and inconvenience low.
  • Only live posts: Posts “deemed to be abolished” under DoE instructions cannot be used for redeployment.
  • Group A officers: Separate orders will come from the Postal Directorate. Until then, the new units will run through local arrangement or additional charge.
  • No new budget: Costs come from existing funds. Any new inspection vehicle needs separate approval.

One-Year Review

The Circle must grow revenue and improve the Expense Coverage Ratio (ECR) of new and old units. After one year, before-and-after figures (concurred by CIFA) will go to the Establishment Division.

Timeline at a Glance

DateEvent
25 Sep 2026West Bengal Circle sends its proposal
07 Oct 2026Integrated Finance Wing concurrence (Diary No. 125/2026-27/FA-CS(P))
12 Oct 2026OM issued by Dak Bhawan
1 Nov 2026Changes take effect; CPMG West Bengal to issue orders and send an Action Taken Report

Why This Matters for Exam Aspirants

New divisions are a common India Post GK topic. Quick notes:

  • New Divisions: Siliguri (from Darjeeling), Diamond Harbour (from Baruipur and South Kolkata) and Bongaon (from Barasat and Barrackpore)
  • Central Kolkata Division merges into North Kolkata and East Kolkata
  • New Sub-Divisions: Namchi (Sikkim), A&N Islands-II (Sri Vijayapuram), Bagnan (Howrah) and Deganga
  • Sikkim’s sub-divisions are now named Gangtok, Gayzing and Namchi

New divisions can also bring new division-wise vacancy figures in future GDS to MTS, GDS to Postman and MTS to PA exams in the West Bengal Circle.

Preparing for the GDS to MTS Departmental Exam, Postman to PA or MTS to PA exam? Our GDS to MTS Online Classes, India Post Mock Tests, India Post Previous Year Question Papers and India Post Study Material make every topic easy, step by step.

FAQ

Q1. Which new Postal Divisions are created in West Bengal Circle? Three: Siliguri (North Bengal Region), Diamond Harbour and Bongaon (both Kolkata Region).

Q2. What happens to Central Kolkata Division? It is merged into North Kolkata and East Kolkata Divisions.

Q3. Which new Sub-Divisions are created? Four: Namchi (Sikkim), A&N Islands-II (HQ Sri Vijayapuram), Bagnan (Howrah) and Deganga.

Q4. What are Sikkim’s sub-divisions now? Gangtok, Gayzing and the new Namchi Sub-Division.

Q5. From when do these changes apply? From 1 November 2026.

Q6. Is a new Postal Region created in West Bengal? No. This OM creates only divisions and sub-divisions.

Q7. Can this come in the India Post Departmental Exam? Yes, it can. New divisions are useful for India Post GK questions in GDS to MTS, Postman and PA/SA exams.

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