Data Source Policy
How data is selected, matched, and kept current.
| Data | Primary source | Fallback |
|---|---|---|
| Issue dates, status and price | BSE/NSE public issue data | Official offer documents |
| Subscription | BSE/NSE bidding data | Identified secondary market-data source |
| Documents and registrar | RHP/DRHP and exchange issue page | Reviewed enrichment |
| GMP | Reviewed unofficial market observation | Third-party market feed |
| Allotment | Registrar announcement or link | Exchange announcement |
Freshness targets
| Data | Update target | Stale threshold |
|---|---|---|
| Subscription | Every 3 hours | Stale after 4 hours |
| Active issue dates, status and price | At least daily | Stale after 24 hours |
| GMP observations | At least daily while active | Stale after 24 hours |
| Documents, registrar and allotment | At least daily while active | Stale after 24 hours |
Records are matched by official exchange identifiers first, then canonical slugs or reviewed aliases. Conflicting or impossible schedules are withheld for review. Time-sensitive data displays its source and update time where available; stale or failed updates enter the admin exception workflow.