GST registration is the widest business register India has — it covers proprietorships and partnerships that never appear in MCA records. These guides document what is in that record, where each field comes from, and where it stops being reliable.
Newest first
The mobile number given at GST registration is OTP-verified and never published. Every phone column in a GST file was joined in from somewhere else — here is from where, and whose number it usually is.
Industry, turnover and HSN filters appear on every GST data sales page. Three of them are not fields in the registration record — and the two that are behave nothing like buyers assume.
City is the most requested filter on GST data and the only common one that is not a field in the register. Here is how city lists are actually assembled, and where they break.
Geographic filters on GST data are less precise than they look. What the state code guarantees, what the address does not, and how to build territory lists anyway.
Daily delivery and daily data are different products sold under the same word. Four lags sit between a registration and your CRM — here is how to measure each one.
The registration record has no contact fields, so every contact database is a join. Here are the four ways that join is performed and how to tell which one you bought.
A GST registration record has eleven public fields, and a phone number is not one of them. What the register actually contains, and what a "lead" built from it really is.
Free, official, takes a minute. How to search a GSTIN, decode its 15 characters, read every returned field, and understand why a contact number is not among them.