state. Food security to all Indians are guaranteed under the National Food Security Act, 2013 where the government provides food grains to economically vulnerable people at a very subsidised rate. Aadhar It is a 12-digit unique identity number that can be obtained voluntarily by residents or passport holders of India, based on their biometric and demographic data. The data is collected by the Unique Identification Authority of India (UIDAI), a statutory authority established in January 2009 by the government of India, under the jurisdiction of the Ministry of Electronics and Information Technology, following the provisions of the Aadhaar (Targeted Delivery of Financial and other Subsidies, benefits and services) Act, 2016. Aadhaar is the world's largest biometric ID system. World Bank Chief Economist Paul Romer described Aadhaar as "the most sophisticated ID programme in the world". The government of India uses this unique identification number to distribute social security and welfare measures to its citizens and legal residents. Budget As per the Economic Survey of the Government of India of 2022-23, the general government (federal, states and local bodies combined) expenditure on social protection (direct cash transfers, financial inclusion, social benefits, health and other insurances, subsidies, free school meals, rural employment guarantee and housing grants for the low income), was approximately , which was 8.3% of gross domestic product (GDP). These are not part of the employment related social security which are managed separately by individual bodies. If the funds spents by the EPFO, ESI and the various other providents fund bodies are taken into account, the total spending by the general government of India (centre, states and cities all together) is 12.8% of the GDP or . Federal government social security bodies and programs This section covers some of the social programs and welfare measures in place in India at the federal level. These can be categorized into two: 1) Social security, which mostly run through mandatory or voluntary contributions on the payroll and 2) Social assistance, which is funded through taxes. Social Security These are retirement, healthcare, disability, childcare, gratuity and provident fund and insurance programs mostly governed by The Code on Social Security, 2020, most of which are mandatory for all Indian and foreign employees' working in India. National Pension System This is thought to eventually become the national pension system of India which initially started to replace the civil servant's pension system. Civil Servants who joined service