Delhi's Digital Archives at a Crossroads: The Key Decisions Ahead on Duplicate Image Replacement

Delhi's municipal and heritage record offices are sitting on a problem years in the making: tens of thousands of duplicate scanned images clogging government digital archives, slowing retrieval systems and inflating storage costs at a moment when the city cannot afford either. The immediate question now is not whether to act, but how fast, and who pays for it.

The issue has sharpened this year because the Delhi Metro Rail Corporation's Phase 4 expansion — running through sensitive corridors including Janakpuri West to RK Ashram Marg — requires rapid access to land-acquisition records, heritage-zone surveys and utility maps. When duplicates occupy the same database fields as verified originals, retrieval errors follow. For infrastructure approvals, that is not a bureaucratic inconvenience. It is a direct cause of delays.

Where the Backlog Lives

The worst-affected repositories are the Delhi State Archives on Tilak Marg, which holds records going back to the pre-Partition era, and the Municipal Corporation of Delhi's Central Zone digitisation centre near Kashmere Gate. Both institutions ran parallel scanning drives — one funded under the National Mission for Manuscripts and another under a Smart Cities Mission sub-programme — without a shared deduplication protocol. The result, according to publicly available audit summaries from the Comptroller and Auditor General's 2024-25 report on digital governance in Union Territories, is that a significant share of archived image files exist in two or more identical or near-identical versions across separate servers.

The problem is compounded by format fragmentation. Scans produced under older government contracts typically used TIFF files at 300 dpi. Later batches shifted to compressed JPEG variants to save space. Cross-format deduplication requires specialised software that neither archive currently has on contract. Procurement for such a tool, under central government guidelines, takes a minimum of 90 days from the date a tender is floated.

Old Delhi's heritage zone adds another layer of urgency. The Archaeological Survey of India and the Delhi Urban Heritage Foundation both maintain photographic documentation of structures in areas like Shahjahanabad, Chandni Chowk and the Walled City precinct. Overlapping documentation projects since 2018 have left multiple agencies holding uncoordinated image sets of the same monuments, with no single authority designated to verify which version is the canonical record.

The Decisions That Cannot Wait

Three choices will define how this gets resolved over the next six to twelve months. First, the Delhi government must decide whether deduplication will be handled in-house by the Department of Information Technology or outsourced to a vendor under the existing National Informatics Centre framework. In-house processing preserves data custody but requires retraining staff; outsourcing is faster but raises questions about access to sensitive land and property records.

Second, a deduplication standard has to be set before any deletion begins. Removing an image that turns out to be the only surviving scan of a contested boundary line — relevant in Yamuna floodplain land disputes, for instance — would be a serious and potentially litigated error. Legal teams within the MCD have reportedly flagged this concern in internal notes, though no public directive has been issued as of July 4, 2026.

Third, there is a budget question. The Smart Cities Mission allocation for Delhi in the 2025-26 Union Budget was approximately Rs 450 crore, spread across multiple infrastructure and digital governance streams. Archive remediation has not historically commanded a dedicated line. Advocates within the archival community argue a ring-fenced fund of even Rs 8-10 crore would be sufficient to clear the backlog within eighteen months if tendering begins before September.

The practical path forward runs through a single coordinative decision: one nodal officer with cross-departmental authority, accountable to both the elected Delhi government and the Lieutenant Governor's office, needs to be named by the end of July. Without that, the three separate agencies — Delhi State Archives, MCD Central Zone, and the ASI's Delhi Circle — will continue operating independently, and the duplicate image problem will still be there when the next Phase 4 land dispute lands in court.