Last updated: 14 October 2026
India now has two location-based codes that people keep confusing. ULPIN (Bhu-Aadhaar) is the 14-character ID of a land parcel and is linked to who owns it. DIGIPIN is a 10-character code for a tiny square of ground — roughly 4 metres by 4 metres — used as a precise address. One is about land records; the other is about finding a location. Here’s the full comparison.
Table of Contents
ULPIN vs DIGIPIN at a glance
| ULPIN / Bhu-Aadhaar | DIGIPIN | |
|---|---|---|
| What it identifies | A legally recorded land parcel (plot) | A ~4 m × 4 m grid cell on the ground |
| Length | 14 characters, alphanumeric | 10 characters, alphanumeric (shown as e.g. 39J-49L-L8T4) |
| Issued by | State revenue departments under the Department of Land Resources (Ministry of Rural Development) | Department of Posts (Ministry of Communications), with IIT Hyderabad and NRSC-ISRO |
| How it’s made | From the coordinates of the parcel’s boundary vertices on a geo-referenced cadastral map | From the latitude and longitude of a point, by dividing India into a fixed grid |
| Linked to ownership? | Yes — printed on the record of rights | No — it carries no owner or property information |
| Who gets one | Every surveyed parcel, as states map them | Every 4 m square in India already has one — anyone can look it up |
| Changes when… | The parcel’s boundary changes (e.g., partition, after re-measurement) | Never — the grid is fixed |
| Used for | Land records, registration, mutation, loans, disputes | Deliveries, emergency services, addresses where there’s no street name |
| Can you look it up yourself? | Yes, on your state land-records portal | Yes, on the “Know Your DIGIPIN” portal |
One house, two codes
Imagine a 2,000 sq ft plot in a village. The plot has one ULPIN — the whole parcel, as drawn on the revenue map. The same plot covers about a dozen 4 m × 4 m DIGIPIN squares, so it has many possible DIGIPINs; you’d normally use the one at the gate as your address. Sell half the plot after it’s measured, and the land records will need a new parcel for the half that was sold. The DIGIPIN at your gate stays exactly the same.
What is DIGIPIN, briefly
DIGIPIN (Digital Postal Index Number) is an open-source, grid-based digital address system. The Department of Posts launched its public “Know Your DIGIPIN” platform in May 2025. It splits India into a nested grid and gives each roughly 4 m square a 10-character code from a 16-symbol set. Because the code is computed purely from coordinates, the code itself contains no personal information, and the specification and source code are public on GitHub. Find yours at dac.indiapost.gov.in/mydigipin.
Which one do you need?
- Buying, selling, mortgaging or inheriting land: ULPIN (plus the khasra/survey number and record of rights). See how to find your ULPIN.
- Getting a parcel, ambulance or courier to the exact spot: DIGIPIN.
- Filling a form that asks for “Bhu-Aadhaar”: your ULPIN — not your DIGIPIN, and not your personal Aadhaar.
Not sure which code you have? Our checker recognises both:
Land ID Checker
Paste any number from your land papers to see if it is a valid-format ULPIN — or a khasra, Aadhaar, UP code or DIGIPIN. Runs in your browser; nothing is stored.
A format check can't confirm that a ULPIN exists or who owns the land. Always verify on your state's official land-records portal.
Frequently asked questions
Is DIGIPIN the same as Bhu-Aadhaar?
No. Bhu-Aadhaar (ULPIN) identifies a land parcel in the land records. DIGIPIN identifies a small grid square for addressing and has no link to ownership.
Can I use DIGIPIN to check land ownership?
No. DIGIPIN carries no ownership information. Use your state land-records portal and the plot’s ULPIN or khasra/survey number.
How many characters are in DIGIPIN and ULPIN?
DIGIPIN has 10 characters; ULPIN has 14.
Will DIGIPIN replace the PIN code?
DIGIPIN works alongside the 6-digit PIN code, which covers a whole postal area. DIGIPIN pinpoints an exact spot within it.
Does my plot have a single DIGIPIN?
A plot larger than about 4 m × 4 m covers several DIGIPIN squares. People usually share the code for their entrance.
