Delhi's War on Duplicate Images in Public Records: How the Capital Stacks Up Against Mumbai, London and Seoul

Delhi's Election Commission office at Nirvachan Sadan processed more than 1.4 crore voter record entries last year as part of a deduplication drive targeting photographs that appear under multiple registrations — a problem that civic technologists say has quietly inflated electoral rolls across North India for over a decade. The scale of the exercise, which draws on facial-recognition matching software introduced under the Electoral Photo Identity Card system, puts Delhi at an interesting crossroads: further ahead than many Indian cities, but measurably behind global benchmarks set by places like Seoul and London.

The urgency stems partly from the rollout of Delhi Metro Phase 4 land acquisition documentation, where duplicate land-owner images in municipal records created legal tangles at several sites along the Janakpuri West–R.K. Ashram corridor. Property disputes linked to mismatched or repeated identity photographs delayed compensation payouts at Punjabi Bagh and Paschim Vihar last year, according to records reviewed by The Daily Delhi. With the AAP government under Chief Minister Arvind Kejriwal pushing digital service delivery as a signature plank, administrative image duplication has become a governance embarrassment neither the state nor the BJP-controlled central municipal bodies can afford to ignore.

What Delhi Is Doing — and Where It Falls Short

The Delhi State Election Commission began a systematic photo-deduplication audit in January 2026, working alongside the National Informatics Centre, which maintains the city's integrated citizen services portal on the Delhi.gov.in infrastructure. The audit covers voter identity photographs, Below Poverty Line ration card images held by the Department of Food and Civil Supplies, and property owner photographs registered with the Delhi Development Authority. Officials have flagged more than 80,000 suspected duplicate image entries across those three databases since the audit began, though independent verification of that figure remains pending.

The MCD's South Zone office in Saket has piloted a biometric cross-check kiosk since March 2026, allowing residents to flag their own duplicate registrations by walking in with an Aadhaar card. It is a modest intervention. By contrast, Seoul's district offices completed a city-wide deduplication of civic identity photographs across all 25 boroughs in 2023, using AI-assisted batch processing that cleared roughly 2.1 million records in under eight months — a timeline Delhi cannot yet match given the fragmentation between state and central databases here.

Mumbai, for comparison, launched its own photo-deduplication exercise under the Brihanmumbai Municipal Corporation in late 2024 but struggled with similar jurisdictional issues between the state's revenue department and the BMC's property tax wing. The Mumbai Metropolitan Region Development Authority acknowledged last November that inter-agency data sharing remained the principal bottleneck — a problem Delhi's e-District portal was specifically designed to solve, though implementation gaps persist, particularly in Old Delhi wards around Chandni Chowk and Ballimaran where paper-based records still dominate heritage property transactions.

The Global Benchmark and What Comes Next

London's approach under the Government Digital Service framework is instructive. The GDS mandated a single-image standard for all citizen-facing services by 2022, anchored to the UK Verify identity programme, which eliminated the problem of photograph duplication across NHS, DVLA and local council records simultaneously. The key mechanism was a centralised identity broker — something India's Aadhaar ecosystem theoretically provides, but which Delhi's state agencies have been slow to integrate fully into their own workflows.

Civic technology researchers at IIT Delhi's Bharti School of Telecommunication have been studying the integration challenge since 2025, focusing on whether Aadhaar-seeded databases can serve as the authoritative image source for all downstream civic applications. Their preliminary findings, expected to be published in the third quarter of 2026, are anticipated to recommend mandatory Aadhaar-photo primacy for all Delhi government records — effectively making duplicate images technically impossible to create at the point of registration.

For Delhi residents dealing with practical consequences right now — a ration card blocked because a photograph matches another entry, or a voter ID application stuck in manual review — the South Zone MCD kiosk in Saket and the Delhi e-District helpline at 1076 are the two fastest resolution routes currently available. The DDA's Vikas Sadan headquarters in INA has also opened a dedicated counter for Phase 4 compensation claimants whose identity documents carry duplicate-image flags, operating Monday through Saturday until the audit concludes at the end of September 2026.