"Shocking breach of security that has left lakhs of innocent citizens extremely vulnerable.
"I am proud that we took the lead on Aadhaar, but let us not compromise a great initiative by turning a blind eye to major privacy and security concerns," he said on Twitter.
There are reports of digital identities of more than a million citizens have been compromised by a programming error on a website maintained by the Jharkhand Directorate of Social Security.
The glitch revealed the names, addresses, Aadhaar numbers and bank account details of the beneficiaries of Jharkhand's old-age pension scheme.
Jharkhand has over 1.6 million pensioners, 1.4 million of whom have seeded their bank accounts with their Aadhaar numbers to avail direct bank transfers for monthly pensions.