Delhi Agencies Race to Purge Duplicate Images From Public Records as Digital Archive Overhaul Hits Week Two

Delhi's digitisation effort hit a fresh snag this week when municipal departments across the capital confirmed that duplicate images — the same photograph, scan or identity document filed multiple times under different reference numbers — have been fouling records databases for months, slowing down everything from property registrations in Shahdara to ration card renewals in Seemapuri. The problem, which officials at the Delhi Urban Shelter Improvement Board and the South Delhi Municipal Corporation acknowledged internally, is now being treated as a priority clearance task ahead of an August 15 internal audit deadline.

The timing matters because Delhi is midway through a broader digital records overhaul that was supposed to dovetail with the Phase 4 Delhi Metro expansion. Station-adjacent land acquisition paperwork, building clearance certificates and contractor identity files were all migrated to a centralised server earlier this year. Duplicate images embedded in those files have been generating mismatches that hold up approvals — a bottleneck that affects thousands of pending applications sitting in the queue at the Delhi Development Authority's online portal.

Where the Backlog Is Worst

The duplication problem is not uniform across the city. Three districts are carrying the heaviest load. In North-East Delhi, the office handling records for Mustafabad and Karawal Nagar flagged more than 4,000 flagged image pairs in a single week during the last week of June. In Central Delhi, the zone covering Paharganj and Karol Bagh — where commercial property filings are dense — reportedly identified overlapping photograph sets in hundreds of trader licence applications. South Delhi's Malviya Nagar sub-registrar office is the third trouble spot, where a backlog of housing society documents migrated from physical files has produced a significant volume of near-identical scans that automated deduplication software cannot cleanly resolve without human review.

The Delhi e-District portal, which handles citizen services including caste certificates, income certificates and domicile documents, processes well over a lakh applications per month during peak periods. When a duplicate image attaches to two different citizen profiles, the verification step fails automatically, kicking the application back to a junior clerk for manual inspection. That manual queue, according to the workflow documents seen by The Daily Delhi, adds an average of eleven working days to an application's processing time.

What Is Being Done — and What Comes Next

The National Informatics Centre, which maintains the backend infrastructure for several Delhi government portals, has been brought in to run a deduplication script across the affected databases. The script compares image hash values — a technical fingerprint that identifies visually identical files — and flags pairs for review. A first pass completed on July 2 reportedly cleared roughly 60 percent of straightforward duplicates automatically. The remaining 40 percent require a clerk to look at both images and confirm whether they belong to the same record or represent two genuinely different but visually similar documents.

The Aam Aadmi Party government has framed the cleanup as part of its broader Rozgar Budget commitment to faster citizen service delivery, though the specific deduplication exercise was not publicly announced as a standalone initiative. Workers at the Indira Gandhi Indoor Stadium relief registration camp — where some of the original physical documents were bulk-scanned during a 2024 flood relief drive — say that the speed of that emergency digitisation is partly what created the problem in the first place.

For ordinary Delhiites with pending applications, the practical advice from the e-District help desk on Rajpur Road is straightforward: log in, check application status, and if the rejection reason cites a document verification error, re-upload the original photograph or scan as a fresh file rather than resubmitting the same attachment. Citizens who uploaded documents before March 1 this year are most likely to be caught in the affected batch. The NIC expects the manual review queue to be cleared by July 18, ahead of the August audit, though the volume of incoming applications means that timeline remains tight.