737120 PIN Code: Chungthang, Lachen (North District)
737120 is the PIN code of Chungthang, Lachen, Lachung, Naga and 1 more in North District district, Sikkim. Mail for 737120 is delivered by Chungthang SO, Lachen BO, Lachung BO. It covers 11 villages.
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Chungthang, Lachen, Lachung
737120 at a glance
- PIN code
- 737120
- Areas
- Chungthang, Lachen, Lachung, Naga and Shipgyare
- District
- North District
- State
- Sikkim
- Postal circle
- West Bengal Circle
- Region / division
- DivReportingCircle · Sikkim Division
- Head office
- Gangtok HO (22.9 km south)
- Delivery office
- Chungthang SO, Lachen BO and Lachung BO and 2 more
- Post offices
- 5 (1 sub office and 4 branch offices)
- Villages
- 11 in 1 tehsil
- Towns / local bodies
- Mangan Nagar Panchayat
- Type of area
- Town and villages
- Middle of the area
- 27.53000, 88.55000
- DIGIPIN of the middle
- 28L5F9F5J9
- Sorting district code
- 737 (shared by 19 PIN codes; East District and South District)
- Nearest PIN codes
- 737116 (5.8 km), 737107 (14.4 km), 737103 (21.0 km), 737101 (22.7 km)
Sources: India Post's All India Pincode Directory (list dated 3 Oct 2025), the Local Government Directory (Ministry of Panchayati Raj), OpenStreetMap. Area and middle point are approximate, from our map.
Where PIN 737120 is
- PIN 737120
- Neighbouring PIN codes (tap one)
- Post office that delivers mail
- Other post offices (counter only)
- Main roads, railways and water
An approximate shape, not an official boundary: India Post doesn't publish PIN boundary maps. Each spot takes the PIN of the nearest post office or address mapped on OpenStreetMap (3 carry 737120). Blank parts have no known address nearby. Roads, railways and water: © OpenStreetMap contributors.
About the 737120 area
737120 is a PIN code covering town areas and villages in North District district, Sikkim. India Post lists 5 post offices under it: Chungthang SO, Lachen BO, Lachung BO, Naga BO and Shipgyare BO. Mail for addresses with this PIN is delivered by Chungthang SO, Lachen BO and Lachung BO and 2 other offices.
In India Post's structure, 737120 belongs to the Sikkim Division, part of the DivReportingCircle of the West Bengal Circle. The nearest head office of its division is Gangtok HO, about 22.9 km south. The first three digits, 737, are the sorting district code that 19 PIN codes share, covering East District and South District.
11 villages in the Local Government Directory carry PIN 737120, spread over 1 tehsil: Chungthang (11). They include Chungthang, Chungthang Forest Block, Lachen, Lachen Forest Block and Lachung.
Town areas with this PIN: Mangan Nagar Panchayat (town panchayat).
The middle of the 737120 area is at 27.5300° N, 88.5500° E (DIGIPIN 28L5F9F5J9). The closest PIN codes are 737116 (Mangan, 5.8 km south-west), 737107 (Dikchu, 14.4 km south) and 737103 (Rajbhawan SO East Sikkim, 21.0 km south).
North District district has 2 PIN codes. The one with the most post offices is 737116 (Mangan, 18); 737120 has 5. The one with the most villages is 737116 (Mangan, 40).
Post offices with PIN code 737120
| Post office | Type and mail delivery |
|---|---|
| Chungthang SO | Sub office Delivers |
| Lachen BO | Branch office Delivers |
| Lachung BO | Branch office Delivers |
| Naga BO | Branch office Delivers |
| Shipgyare BO | Branch office Delivers |
"Delivers" means postmen from that office bring mail to addresses with this PIN. Head offices run a postal division's accounts; sub offices serve towns; branch offices are small, mostly village offices working under a sub office. More on the types of post offices.
What the digits of 737120 mean
A letter to 737120 is sorted in four steps, one for each part of the code (all zones and circles):
- 1 · Zone737120
Eastern zone: Odisha, West Bengal, Assam, Arunachal Pradesh, Meghalaya and others
- 2 · Postal circle737120
West Bengal Circle
- 3 · Sorting district737120
Sorting district covering East District and South District
- 4 · Delivery office737120
Delivered by Chungthang SO, Lachen BO
Villages under PIN code 737120 (11)
| Village | Mandal / tehsil | District |
|---|---|---|
| Chungthang | Chungthang | Mangan |
| Chungthang Forest Block | Chungthang | Mangan |
| Lachen | Chungthang | Mangan |
| Lachen Forest Block | Chungthang | Mangan |
| Lachung | Chungthang | Mangan |
| Lachung Forest Block | Chungthang | Mangan |
| Naga-Namgor | Chungthang | Mangan |
| Shipgyer Forest Block | Chungthang | Mangan |
| Shipyer | Chungthang | Mangan |
| Thanggu Forest Block | Chungthang | Mangan |
| Toong | Chungthang | Mangan |
Villages: Local Government Directory, Ministry of Panchayati Raj (list dated 1 Sep 2026), names as the government lists them.
Towns and local bodies with PIN 737120
- Town panchayat Mangan Nagar Panchayat
PIN codes near 737120
Distances are as the crow flies, between the middles of each PIN's mapped addresses and post offices.
How to write an address with PIN 737120
Name House / flat number, street Chungthang, North District Sikkim - 737120
Write the 6 digits in full at the end, after the state. Use the area name that matches your street, from the post offices above. How to write an Indian address.
Questions about PIN 737120
Which area has the PIN code 737120?
737120 is the PIN code of Chungthang, Lachen, Lachung and Naga and other areas in North District district, Sikkim.
Which district and state is 737120 in?
North District district in Sikkim, in India Post's West Bengal Circle (Sikkim Division).
How many post offices use 737120?
5 post offices: Chungthang SO, Lachen BO, Lachung BO, Naga BO and Shipgyare BO.
Which post office delivers mail for 737120?
Chungthang SO, Lachen BO, Lachung BO and Naga BO deliver mail for this PIN.
What is the head office for 737120?
Gangtok HO, about 22.9 km south of the 737120 area, is the nearest head office in the Sikkim Division.
Which villages come under PIN code 737120?
11 villages, including Chungthang, Chungthang Forest Block, Lachen, Lachen Forest Block, Lachung, Lachung Forest Block, Naga-Namgor and Shipgyer Forest Block. The full list is on this page.
Is 737120 a rural or urban PIN code?
Both: it covers town areas (Mangan Nagar Panchayat) and 11 villages.
What are the PIN codes near 737120?
737116 (Mangan, 5.8 km), 737107 (Dikchu, 14.4 km), 737103 (Rajbhawan SO East Sikkim, 21.0 km), 737101 (Gangtok, 22.7 km) and 737136 (Majitar, 23.6 km), measured between the middles of the areas.
What is the DIGIPIN of the 737120 area?
28L5F9F5J9 is the DIGIPIN of the middle of the area. A DIGIPIN marks a spot about 4 metres wide, so every house has its own; use the DIGIPIN tool for your exact spot.
Is 737120 the PIN code of my address?
If you are at the address, tap "Is this my PIN code?" at the top of this page. Otherwise check that your street's area matches one of the post offices or localities listed here. For anything important, confirm with your post office.
Post offices: India Post, All India Pincode Directory on data.gov.in (Government Open Data License - India), list dated 3 Oct 2025. District names are as India Post lists them and can differ from the revenue district. Not an India Post website: for anything important, confirm with your post office.
More PIN codes
All 2 PIN codes of North District · All PIN codes of Sikkim · PIN code guides · Find the PIN code of where you are