The development has revived persistent concerns that the Election Commission of India may have removed millions of legitimate voters from state election rolls as part of the controversial 2015 National Electoral Roll Purification and Authentication Programme (NERPAP). In November this year, reported on how the ECI and UIDAI sought to use Aadhaar-linked biometric authentication, and unproved algorithms, to toy with the most fundamental right of any citizen in a democracy—the right to vote. READ: The documents show how Aadhaar-related technology, particularly data-sorting algorithms, have permeated some of the most fundamental aspects of civic life in India without any public discussion about its efficacy, or the risks involved. Rather than create transparency and accountability, the UIDAI's software has had the opposite effect—where senior government officers defer their judgement to software which they barely understand. The project, as HuffPost India reported at the time, was field-tested in Andhra Pradesh and Telangana.