In a written reply to the Lok Sabha, Minister of State for Food and Consumer Affairs C R Chaudhary said the purpose of Aadhaar-based biometric authentication of beneficiaries is to correctly identify the eligible beneficiaries under the National Food Security Act (NFSA).
He said states and Union Territories have deleted about 2.75 crore ration cards during 2013-2017.
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"Against deleted ration cards, the State/UT governments have issued new ration cards to the eligible beneficiaries/ households under NFSA. Due to this, government is able to achieve an estimated 'Rightful Targeting of Food Subsidy' of about Rs 17,500 crore per annum," Chaudhary said.
The minister said that under the food law, ceiling limit of beneficiaries for each State/UT has been fixed. Inclusion/ exclusion criteria of beneficiaries is decided and notified by State/UT concerned.
Under the food law, the government provides 5 kg of foodgrains per person per month at a highly subsidised rates of Rs 1-3 per kg. More than 80 crore people are covered under this law, costing exchequer about Rs 1,40,000 crore per year.