Data sources: the 21 public sources behind the database

Every record in the database is built from publicly published institutional contact information: the details schools, colleges and institutes publish so that they can be reached. 199,730 institutions are compiled from 21 source extracts in three categories, then deduplicated into one record per institution. Each record keeps the names of its sources and a source count, so on any row you can see how many independent extracts agree. The database was last updated on 21 Aug 2026.

The three source categories

How records are deduplicated

Records from every extract are normalised (name, location, phone, email) and merged into one record per institution; each merged record keeps the list of source keys and a source count so agreement between sources is visible on every row.

Where two extracts disagree on a field, the value from the higher trust source wins and the other is kept as evidence; where only one extract has a field, that value is used and the source count shows it stands alone. Board affiliation is recorded only where an official registry publishes it: 39,439 records carry CBSE and 4,685 ICSE/ISC.

What enrichment adds, and what it never does

After compilation, an enrichment pipeline fills gaps only from verifiable evidence: for example, the state of an institution is derived from the STD code embedded in its landline number, and an institution's type is classified from unambiguous vocabulary in its name. Every such change is recorded with its evidence and can be reversed. Nothing is generated from a pattern: no guessed email addresses, no inferred phone numbers.

Coverage today

• 88,554 institutions (44%) have an email address; 186,481 (93%) a phone number, 126,010 of them a mobile number.
• 118,486 name the principal or a primary contact; 23,953 have a website.
• 139,649 have state and district or city; 36 states and union territories and 668 districts are represented.

Refresh cadence

Enrichment runs continuously; the headline numbers on this page refresh every hour from the live database. Each data refresh is posted on the updates page with its date and counts, and full access includes every refresh at no extra cost.

Corrections and removals

Institutions can ask for their record to be corrected or removed by emailing hello@indianschoolsdatabase.com; the data policy explains the process and the responsibilities of buyers who contact institutions from the list.