The document discusses Employees' State Insurance (ESI), a self-financing social security and health insurance scheme for Indian workers established in 1948 that is managed by the ESI Corporation and provides medical and cash benefits to employees and their families through a large network of offices and hospitals. ESI requires employers to contribute 4.75% of wages and employees to contribute 1.75% of wages for those earning 15,000 rupees or less per month, with the scheme originally proposed in 1923 and enacted in 1948 and now covering over 15.5 million employees.