Hello Ajay,
ESIC stands for Employee State Insurance Corporation. The ESI Act of 1948 envisions an integrated social insurance scheme to provide social security to industrial workers in certain contingencies such as sickness, maternity, temporary or permanent physical disablement, and death due to employment injury resulting in the loss of wages or earning capacity. The act also guarantees full medical care to the workers and their dependent family members. The act was first implemented in Kanpur and Delhi on February 24, 1952, and has since been implemented in all states and union territories of India.