The ESI Act applies to non-seasonal factories or manufacturing units using power and employing 10 or more persons, and non-power using establishments employing 20 or more persons. Under the enabling provisions of the Act, a factory or establishment, located in a geographical area, notified for implementation of the scheme falls in the purview in the Act. Employees of the aforesaid categories of factories and establishments, but drawing wages only upto Rs.10,000/- a month are entitled to health Insurance cover under the ESI Act. The wage ceiling for purpose of coverage is revised from time to time to keep pace with rising cost living and subsequent wage hikes. The present ceiling of Rs.10,000/- has been effective from 1.4.2004. However, this is a mere guidance and details may be seen from ESI Act 1948, as amended.