A CIS study estimated number of Aahdaar numbers leaked through 4 gov portals could be around 135 million and 100M bank account numbers. The leaks represent a significant and potentially irreversible privacy harm, they potentially expose citizens to numerous illegal purposes. The CIS examined numerous databases used by government offices, many of which included numerous instances of Ahadaar Numbers associated with personal information. Other major schemes, who have also used a similar system, could have leaked PII similarly due to lack of information security practices.”]
Source: http://securityaffairs.co/wordpress/58676/digital-id/aadhaar-information-security-practices.html