Sources & data lineage

Companion note to the Tribunal Appeal Evidence Report on source deletion records and appeal-check outcomes across West Bengal Assembly Constituencies.

Generated 2026-09-11T01:08:42Mode {mode}

Every figure on this site should be traceable to a source and a processing step. This page documents the data lineage for the generated publication.

Primary data source

The primary data source is the SIR 2026 adjudication deletion lists and the supplementary electoral roll published by the Election Commission of India (ECI) at voters.eci.gov.in/download-eroll. The electoral rolls published by ECI are not in a machine-readable format: every e-roll is issued as images embedded inside a PDF. Converting the deleted-voter records into usable form therefore required digitising the deletion data from the e-rolls.

Acknowledgements

We extend our special thanks to the Sabar Institute (sabarinstitute.org/sabar-career) for their extraordinary work in publishing digitised deleted-elector data, which saved considerable effort on our part. The digitised records used in this report are drawn from the SIR Deleted Data Repository at sabar-institute.github.io/sir/.

Secondary processing inputs

Prepared AC-wise deletion records
The locally prepared validated.csv and manual_review.csv files are the source of record counts, validation quality, gender, religion, phase, and part summaries.
Appeal-check outputs
Where supplied, per-AC processed output files provide appeal status, appeal reference, and tribunal-decision fields. The dashboard only overlays records that exist in the current validated list.
Electoral verification outputs
Where supplied, EPIC verification files provide search outcomes and returned-name fields for eligible records.
District mapping
Missing district metadata is completed from the district column in the List of constituencies of the West Bengal Legislative Assembly. Coordinator-supplied district metadata takes precedence.
Assembly boundaries and basemap
The site bundles a West Bengal AC GeoJSON boundary asset. The optional map background is supplied by OpenStreetMap when an internet connection is available.

Version and scope

Generated: 2026-09-11T01:08:42
Dataset mode: Source data with appeal-check results

The site does not contact an election portal, browser session, credential store, or live API while it is being viewed. It presents only the locally prepared files available at generation time.

Citation guidance

When publishing an aggregate figure, cite this dashboard’s generation date, the underlying official source record, the AC scope, and the method above. Do not cite a dashboard total as a substitute for the official document or tribunal order.