How to read a CIN — what those 21 characters tell you
A Corporate Identity Number is not a random string. Each block of it tells you something concrete about a company — listing status, industry, state, year and ownership type — before you open a single document.
Pradeep Vanga ·
Every company registered in India has a Corporate Identity Number: 21 characters, assigned by the Registrar of Companies, unique and permanent. Most people treat it as a reference code to copy and paste.
It is considerably more useful than that. The CIN is structured, and each block carries a fact about the company. Read it properly and you know roughly what you are dealing with before you open a single filing.
The five blocks
Take a CIN in the shape U68200TS2023PTC174020 and split it:
| Block | Example | Meaning |
|---|---|---|
| 1 character | U | Listing status |
| 5 digits | 68200 | Industry classification |
| 2 letters | TS | State of registration |
| 4 digits | 2023 | Year of incorporation |
| 3 characters | PTC | Company class and ownership |
| 6 digits | 174020 | Registration number within that state |
Read left to right, that string says: an unlisted company, in real estate activities, registered in Telangana, incorporated in 2023, a private limited company that is a subsidiary of a public company.
The first character: listed or not
L means listed on a stock exchange. U means unlisted. Since the great
majority of Indian companies are unlisted, U is what you will usually see —
but a L is worth noticing immediately, because a listed company carries far
heavier disclosure obligations and its information is available in many more
places than the register.
The five digits: what it says it does
These are the industry classification digits. They record the activity the company declared at registration — which is a genuinely useful cross-check, because it is common to find a company whose stated business and actual business have drifted apart over a decade. When they disagree, that is a question worth asking.
The two letters: state
The state or union territory of the Registrar of Companies where the company is
registered — TS Telangana, KA Karnataka, MH Maharashtra, DL Delhi, and
so on. Note this is the state of registration, not necessarily where the
business operates.
The four digits: year of incorporation
The most immediately useful block. A company incorporated three months ago asking for thirty days’ credit is a different proposition from one incorporated in 1994. Age does not equal quality, but it does bound how much history could possibly exist.
The three characters: class and ownership
This block is dense. The common values:
PTC— private limited, subsidiary of a public companyPLC— public limited companyFTC— subsidiary of a foreign companyGOI— government of India companySGC— state government companyNPL— not-for-profit under Section 8OPC— one person companyULL/ULT— unlimited liability
OPC in particular is worth spotting: a one person company has a single member,
which tells you something real about the concentration of control.
LLPs are different
A limited liability partnership does not have a CIN. It has an LLPIN, which is
shorter and shaped differently — typically three letters and four digits, like
ABD-0345. If the identifier you are holding does not have 21 characters, you
are probably looking at an LLP, and the filings it makes are different from a
company’s.
Why the CIN matters more than the name
Company names are not as unique as people assume. Near-identical names exist across states, and names change while identifiers do not. If you are recording a counterparty in a contract, a spreadsheet or a compliance file, record the CIN and not just the name. It is the only identifier that will still resolve to the same entity in five years.
That is also why every lookup should start from it. You can search any Indian company or LLP on Entiva by name or by CIN, free, and see the identity, status and incorporation date straight away — which is enough to confirm you have the right entity before you spend anything on its filings.