The Employees' State Insurance Act, 1948 provides medical benefits and cash benefits to insured employees. It applies to factories with 10+ power-using employees or 20+ non-power using employees earning up to Rs. 10,000/month. The scheme is funded through mandatory contributions from employers (4.75%) and employees (1.75%) on wages. Benefits include medical care, sickness benefits that cover half wages for up to 90 days of illness, maternity benefits, and funeral expenses. The scheme aims to provide social security for insured persons against sickness, maternity, and employment injury.