DUNS Number in India: GST, CIN, MSME & IEC Guide

DUNS Number in India: How It Relates to GST, CIN, MSME & Export Registration

Last updated: August 2026

India already has its own alphabet soup of business identifiers — GST, CIN, PAN, Udyam, IEC. A DUNS number is a different thing entirely: a global identifier, not an Indian statutory one. This page explains exactly how it fits alongside the registrations you already have, and where each one actually matters.

Why India Needs Its Own DUNS Number Guidance

Most explanations of the DUNS number are written for a US or UK audience, where a company typically has one or two registration numbers to think about. Indian businesses usually have several — GST, PAN, and often a CIN or Udyam certificate — before a DUNS number ever enters the picture. That naturally raises a fair question: if all of these already prove a business is real, why does anyone need one more number?

The short answer is that India's identifiers and the DUNS number solve different problems. GST, CIN, and IEC are statutory numbers — issued by Indian government bodies, valid only within India, tied to tax and legal compliance. A DUNS number is issued by a private company, Dun & Bradstreet, and recognized internationally by platforms and partners who have no way to independently check an Indian government database. It's not a replacement for your Indian registrations — it's what those registrations help you obtain, when your business needs to be verified outside India.

If you haven't registered for a D-U-N-S number yet, see our Getting Started guide for the free step-by-step process, or our Platform Requirements guide if you're applying specifically for Apple, Google, or Amazon.

DUNS vs GST vs CIN vs Udyam vs IEC — At a Glance

Five different identifiers, five different jobs. Here's what each one actually does.

Identifier	Issued By	Purpose	Format
DUNS Number	Dun & Bradstreet (global)	International business identity & credibility	9-digit numeric
GSTIN	GST Department (state-wise)	Tax compliance within India	15-digit alphanumeric
CIN	Ministry of Corporate Affairs (ROC)	Proof of company incorporation	21-character alphanumeric
Udyam Registration Number	Ministry of MSME	MSME classification & government scheme benefits	Alphanumeric (UDYAM-XX-00-0000000)
IEC	DGFT	Authorization to import or export	10-digit alphanumeric

DUNS VS GST

DUNS Number vs GST Number: Key Differences

GST registration exists to bring your business into India's indirect tax system — it lets you legally charge and remit GST, file returns, and claim input credit. A DUNS number exists for a completely different reason: to give an outside party, usually overseas, a way to verify your business is real and creditworthy without needing to check an Indian government portal.

GSTIN is state-specific — a business operating in multiple states holds multiple GSTINs. A DUNS number is one per legal entity, globally.
GST registration is mandatory past a turnover threshold; DUNS registration is never mandatory by Indian law — only by the platform or partner requesting it.
D&B commonly asks for your GST certificate as supporting documentation when you apply for a DUNS number, so having GST in place first can speed up verification.

Read the full DUNS vs GST guide →

DUNS VS CIN

DUNS Number vs CIN (Corporate Identity Number)

A CIN is issued by the Registrar of Companies at the moment your company is incorporated under the Companies Act, and it stays with that company for life. It proves one specific thing: that a company legally exists in India. A DUNS number doesn't replace this — D&B will often ask for your CIN as one of the documents used to verify your business during DUNS registration.

CIN applies only to registered companies (Pvt Ltd, Public Ltd, OPC) — not to sole proprietorships or partnerships. DUNS numbers are available to any business type, including individuals.
CIN is issued once and never changes. A DUNS number, once assigned, is also permanent per legal entity.
If your CIN and the business name on your DUNS application don't match exactly, expect delays — see our note on document mismatches in the registration timeline guide.

Read the full DUNS vs CIN guide →

MSME / UDYAM

DUNS Number for MSME / Udyam Registered Businesses

Udyam registration is free, instant, and gives your business official recognition as a Micro, Small, or Medium Enterprise — along with access to government schemes like collateral-free loans and payment protection. It has no direct connection to your DUNS number, but in practice, it's one of the most useful documents you can have before applying for one.

Your Udyam certificate is commonly accepted by D&B as proof of business existence, especially useful if you don't yet have GST registration.
MSME status itself has no bearing on whether your DUNS application is approved faster — the certificate simply adds another verifiable data point.
Businesses too new or small to have GST or CIN can often still get a DUNS number using Udyam plus PAN alone.

Read the full DUNS for MSME/Udyam guide →

EXPORT / IEC

DUNS Number for Export/Import (IEC) Registration

The Import Export Code is issued by the DGFT and is a legal requirement to import or export from India — but it has nothing to do with Dun & Bradstreet or your DUNS number. You can hold a valid IEC with no DUNS number at all. The overlap comes from the buyer's side: many overseas importers and international trade platforms informally expect exporters to have a DUNS number, even though no Indian law requires it.

DUNS is not legally required to obtain or use an IEC.
It's commonly requested by foreign buyers, freight partners, and B2B marketplaces as a trust signal before doing business with an unfamiliar exporter.
If you already have an IEC, D&B may accept it as one of the supporting documents in your DUNS application.

Read the full DUNS for Export/Import guide →

STARTUPS

How Indian Startups Can Get a DUNS Number

Early-stage startups are often in the trickiest position — they may not have GST yet, may not have a CIN if they haven't incorporated, and may only have a PAN and maybe a Udyam certificate. The good news is that a DUNS number doesn't require any of these to be perfect or complete; it just requires enough verifiable information to confirm the business exists.

Startups Recognition (DPIIT) certification, if you have it, can also serve as useful supporting documentation.
A DUNS number is often one of the first "international-facing" credentials a startup gets, ahead of fundraising conversations, platform enrollments (Apple/Google), or signing with an overseas vendor.
Even pre-revenue or pre-incorporation businesses in some structures can start the process — see our Getting Started guide for what's required at minimum.

Read the full DUNS for Indian Startups guide →

Frequently Asked Questions About DUNS Numbers in India

Is a DUNS number legally required in India?

No. Unlike GST, CIN, or IEC, a DUNS number is not issued or mandated by any Indian government authority. It's a global business identifier from Dun & Bradstreet, requested by specific overseas platforms, buyers, or partners — not by Indian law.

Can I use my GST number instead of a DUNS number?

No. GST registration confirms tax compliance within India; a DUNS number confirms business identity and credibility internationally. They serve different purposes and aren't interchangeable — most international platforms that ask for a DUNS number won't accept a GSTIN in its place.

Does MSME/Udyam registration replace the need for a DUNS number?

No, but it helps you get one. Your Udyam certificate is one of the most commonly accepted supporting documents when applying for a DUNS number in India, since it's free, instant, and gives D&B a verifiable government record to cross-check.

Do I need a DUNS number to get an IEC code?

No. The Import Export Code (IEC) is issued independently by the DGFT and has no connection to your DUNS number. However, many overseas buyers and international trade platforms separately expect exporters to have a DUNS number, even though it isn't a legal requirement for IEC itself.

In what order should I register — GST, CIN, MSME, or DUNS?

Handle your legal Indian registrations first (incorporation/CIN if applicable, GST if applicable, Udyam/MSME), since D&B typically asks for these as supporting documents. Apply for your DUNS number after, once you have at least one verifiable Indian registration to reference.