Data Sources and Methodology
How RBI IFSC and India Post PIN data are imported, preserved, normalized, activated and displayed.
IFSCPIN.in uses versioned source snapshots so the published directory can be traced and rolled back. The active IFSC source supplied for this build is 68774(2).xlsx; the active postal source supplied is pincode.csv.
Raw preservation
Imported source values are retained in raw columns. Normalized state, district, city, bank and office values are stored separately for search and navigation. A normalization never silently replaces the original value.
IFSC model
Each source snapshot can contain one row per IFSC. Nullable contact, MICR, transfer-support and coordinate fields remain unavailable unless the source provides them. The validator checks the eleven-character pattern and source presence separately; it does not claim a checksum.
PIN model
A PIN code is not treated as a unique post-office key. One pin_codes summary can have many post_offices rows. Every associated office is displayed, with raw office type, delivery status, circle, region, division, district, state and valid coordinates where supplied.
Import controls
Files are uploaded to protected storage, checksummed and processed in bounded resumable batches. Invalid rows enter quarantine. A snapshot becomes active only after count, duplicate and integrity checks. Previous snapshots are retained for rollback according to policy.
Source-match wording
The postmark says the record matched the imported source on the displayed source-checked date. It does not mean the publisher contacted the bank or post office or received official endorsement.
Corrections
Public reports do not alter raw source data. A confirmed issue may create an editorial overlay or wait for a newer source snapshot. The page distinguishes that note from the imported record.