A "new GST registration lead" is a business that recently obtained a GSTIN, packaged as a sales record. The underlying registration is public: legal name, trade name, registration date, constitution, taxpayer type, principal place of business, jurisdiction and status are all visible through the GST portal's Search Taxpayer tool. What is not in that record is a phone number, an email address or a contact person. Every provider selling "GST leads with contact details" is joining the registration to contact data from somewhere else — and the quality of that join, not the registration data, is what you are actually buying.
This guide covers what the register contains, what a registration does and does not prove, and how to read a provider's field list without being misled by it.
What a GST registration record contains
Registration is mandatory above ₹40 lakh annual turnover for goods and ₹20 lakh for services, with lower thresholds (₹20 lakh and ₹10 lakh) in special category states. Many businesses register voluntarily below those thresholds because their buyers require a GSTIN to claim input tax credit — which is why the register captures far more small businesses than the turnover thresholds alone would suggest.
These are the fields a registration produces:
| Field | What it tells you | Public |
|---|---|---|
| GSTIN | 15-character identifier: state code, PAN, entity number, checksum | Yes |
| Legal name | Name as per PAN | Yes |
| Trade name | Operating or brand name, where declared | Yes |
| Date of registration | When the GSTIN became effective | Yes |
| Constitution of business | Proprietorship, partnership, private limited, LLP, etc. | Yes |
| Taxpayer type | Regular, composition, casual, SEZ, ISD, TDS/TCS deductor | Yes |
| GSTIN status | Active, cancelled, suspended, provisional | Yes |
| Principal place of business | Registered address, including state, district and PIN | Yes |
| Nature of business activities | Retail, wholesale, manufacture, service provision, export, etc. | Yes |
| Jurisdiction | State and central jurisdictional office | Yes |
| Return filing status | Whether recent returns have been filed | Yes |
| Phone number | — | No |
| Email address | — | No |
| Promoter / director contact | — | No |
| Turnover | — | No |
The last four rows are the ones that matter commercially. The GST system collects a mobile number and email during registration — they are used for OTP verification — but it does not publish them. Any dataset that pairs a GSTIN with a phone number obtained that pairing elsewhere.
The claim to watch for
"Government verified contact numbers" is the single most common false claim in this market. A phone number matched to a GSTIN is not government-verified by virtue of the match. If a provider uses that phrase, ask them which government system published the number. There is no correct answer to that question.
We break down how those joins are actually performed, and which ones survive scrutiny, in the guide to what a GST business contact database really contains.
What "new" means, and why providers disagree
There is no standard definition. Three are in common use, and they produce materially different lists:
- Registration date — the date the GSTIN became effective. The most defensible definition, and the one the register itself supports.
- Date the provider first observed the record — depends entirely on their collection cycle. A business registered in March can appear in a "new" list in June.
- Date the record was last refreshed — not a measure of newness at all, though it is frequently presented as one.
Ask which one a provider uses before comparing two vendors' "daily new registrations" counts. Two lists that differ by 40% often differ only in definition. The mechanics of collection lag, and the questions that expose it, are covered in what "daily" and "fresh" mean in GST lead data.
What a new registration does and does not prove
A GSTIN issued last month is a genuine signal. It tells you a business has crossed a threshold or chosen to formalise, has a PAN, has a verifiable address, and is at a moment when it is selecting vendors — accountants, banking, software, logistics, insurance. Those decisions cluster in the first ninety days, which is what makes the segment worth targeting at all.
It does not prove:
- Revenue. Voluntary registration below the threshold is common. A GSTIN implies nothing about turnover.
- That the business is operating. Registrations are obtained in advance of trading, and some never trade at all.
- Creditworthiness. No lending decision should treat registration as an input beyond existence verification.
- Purchase intent. A new registration is a timing signal, not an expression of interest in your product.
- That the address is where anyone sits. The principal place of business is frequently a residence, a CA's office, or a virtual office address.
Treating a registration as evidence of the first three is the most expensive mistake teams make with this data, and it is why conversion rates on unqualified "new GST leads" disappoint so consistently. The segmentation that does work is in the outreach playbook for newly registered businesses.
Where the data actually comes from
Providers assemble these datasets in a few ways, and they are not equally robust:
- Portal-derived registration data. The registration fields above, collected systematically. This is the stable core of any such product.
- Cross-register matching. Joining a GSTIN to MCA company records via PAN, giving you directors, incorporation date and — importantly — the company email that MCA does publish. Only works for companies and LLPs, which is a minority of GST registrants. The boundary between the two registers is mapped in GST data vs MCA company data.
- Directory and web enrichment. Phone numbers and emails from business directories, listing sites and company websites. Highly variable quality, and the source of most contact fields sold in this market.
- Panel or third-party contact data. Purchased contact databases matched on name and address. The weakest link, and rarely disclosed.
A provider that will not tell you which bucket each field comes from is telling you something.
Reading a field list critically
When you receive a sample, work through it in this order:
- Separate the columns into registration fields and enrichment fields. If the provider has not done this, do it yourself. The two have completely different reliability profiles.
- Check fill rate on the enrichment columns, not the registration ones. Registration fields will be near 100% because they come from a structured source. Phone and email fill rate is the number that varies between 15% and 70% depending on the provider, and it is the one that determines your cost per usable record.
- Verify a sample of GSTINs directly against the official Search Taxpayer tool. Ten records takes twenty minutes and tells you whether the registration data is real and current.
- Check status. Cancelled and suspended GSTINs in a "new registrations" file indicate a stale or badly filtered extract.
- Ask for the last-checked date per field, not a single date for the whole file.
The full version of this process, including how to calculate real cost per contactable record, is in the B2B data quality checklist.
Who sells this data in India
The market splits into three groups that are often compared as though they were the same thing:
- Company-data platforms — Zauba Corp, Tofler, Probe42 and InstaFinancials — built primarily on MCA filings. Deep on companies, absent on proprietorships.
- GST-focused tools — ClearTax, Masters India, KnowYourGST and GSTZen — mostly built for compliance and verification rather than prospecting.
- Lead and contact platforms — Apollo.io, Lusha, ZoomInfo internationally; Fundoodata and directory-derived data like IndiaMART domestically. Strong on contacts, weak on the newly-registered long tail.
- New-registration specialists, including FinScreener, which is built by the team that publishes this site — see our disclosure.
A like-for-like comparison of what each group can and cannot answer is in where to buy B2B leads in India.
Common questions
Are GST registration details legally public? The registration fields listed above are published by the GST system and searchable by anyone with a GSTIN. That makes them public. It does not automatically make every downstream use of them lawful, particularly once personal data such as a proprietor's mobile number is attached. The DPDP checklist for B2B data covers the distinction.
Can I get the phone number registered with the GSTIN? No. It is collected for OTP purposes and not published. Any number you receive came from another source.
How many new GST registrations happen each month? Aggregate registration statistics are published periodically through official channels including data.gov.in and GST Council releases. We do not quote a figure here because the number moves and stale figures get copied for years. Check the source directly and note the period it covers.
Is a proprietorship's mobile number personal data? Usually yes. For a proprietorship the business and the individual are the same person, so the "it's a business number" argument is weakest exactly where this data is densest. Treat it as personal data by default.
How quickly does this data go stale? The registration fields are stable; status is not. Cancellations and suspensions happen continuously, and a file six months old will contain GSTINs that are no longer active. Contact enrichment decays faster still.