CIN Number and Company Registration Number: What They Are and How to Verify Them

CIN and “company registration number” don’t have one settled relationship across the sources that use them, and it’s worth being precise rather than picking whichever sounds cleaner.

One framing, from Cashfree, treats the “registration number” as technically just the last six digits of the CIN, the ROC-assigned serial number, while the full CIN carries the additional encoded segments (listing status, industry code, state, year, company type) around that serial. Under this framing, the registration number is a subset of the CIN, not a separate identifier.

A different source, Corpzo, uses the terms interchangeably, describing “Company Registration Number” as the identity that’s “more commonly referred to as the Corporate Identification Number (CIN).”

Both usages appear in circulation. If you’re searching for “company registration number” and land on material describing the 21-character CIN, that’s not necessarily wrong; it may just be the source treating the two as synonyms rather than distinguishing the six-digit serial from the full code.

The 21 characters break into six segments, each carrying a specific piece of information about the company.

An example: U74140TN2011PTC082268 decodes to unlisted (U), industry code 74140, Tamil Nadu (TN), incorporated in 2011, private limited company (PTC), with serial number 082268.

CIN applies to companies registered under the Companies Act: private limited, public limited, one-person, and government companies. It does not apply to Limited Liability Partnerships, which instead receive an LLPIN.

What does change over time is the status shown alongside the CIN on the MCA portal: Active, Active in progress, Under process of striking off, Strike Off, or Dissolved. When a company’s status reads “Struck Off,” it has been formally dissolved by the ROC and the CIN is no longer tied to an active, operating entity; if the NCLT approves restoration, the Registrar changes the status back from “Strike-off” to “Active.”This covers status changes specifically; whether a CIN is affected by other events, such as a name change or conversion from private to public, isn’t something sourced material confirms, so this piece makes no claim either way.

The Companies Act, 2013 requires companies to display their CINon letterheads, invoices, official communications, and business documents. One source states non-display can draw a penalty of up to ₹1,000 per day of default, capped at ₹1,00,000, a figure found in only one place and not independently confirmed against the Companies Act text itself, so treat it as a single-source figure rather than a settled number.

These three identifiers get confused because they’re all alphanumeric codes tied to a business, but they’re issued by different authorities for different purposes.

CIN is issued only to companies registered with the MCA/ROC. PAN and GSTIN serve separate tax and compliance registrations issued by different authorities entirely: a company can have a CIN and still not hold a GSTIN if it isn’t required to register for GST. For how the PAN piece of this is verified on its own, see PAN verification. For the GSTIN piece, see GST verification and GSTIN checks.

One route third-party guides describe for looking up a CIN is the MCA website’s “Find CIN” / “View Company/LLP Master Data” service under MCA Services, where a user can search by company name, incorporation date, or registered state, without needing to log in or pay. This is described based on third-party walkthroughs (Tally Solutions, Kanakkupillai) rather than the MCA portal’s own page directly, since the current steps were not independently confirmed against mca.gov.in itself; the specific UI may differ from what’s described.

The Company Master Data search result displays the company’s CIN alongside registration state, director details, authorized capital, and current company status: active, inactive, or struck off.

Lenders use CIN verification to confirm a business applicant is legitimately registered, operational, and MCA-compliant before extending credit, one source frames this as a core piece of due diligence that speeds up digital verification and cuts down manual document checks.

Because a CIN is government-issued and centrally maintained, checking it reduces the risk of dealing with a fake or identity-fraudulent entity during business or corporate loan onboarding. One source states a company cannot formally enter structured financial agreements with regulated lenders without a valid CIN.

This entity-level check sits alongside the individual-identity checks covered in KYCKART’s broader eKYC and digital KYC verificationcoverage: CIN confirms the business exists and is compliant; PAN and Aadhaar confirm who’s behind it.

Reading the CIN-registration-number split together

Two things from above are worth reading side by side. First, the CIN’s structure means the last six digits already function as a standalone serial number, which is exactly the segment Cashfree’s framing calls the “registration number.” Second, Corpzo’s usage treats the full CIN and “registration number” as the same identity. Put together, this suggests the disagreement isn’t really about what the number is, both sources agree the six-digit serial exists inside the CIN, it’s about which noun different writers reach for. For a lender or verification workflow, the practical implication is that a document or portal referencing “company registration number” and one referencing “CIN” may be pointing at the same underlying record, so it’s worth checking which one a source means rather than assuming they’re always distinct fields.