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Expert
Published on: Sep 25, 2026
ESI Registration Criteria
The Employee State Insurance (ESI) is a self-financing social security and health insurance scheme for Indian workers. Initially applicable only to factories with 10 or more employees, the ESI scheme now encompasses a broader range of establishments. Currently, any factory or establishment employing 10 or more persons and offering wages up to Rs.21,000 per month must obtain ESI registration. For a step-by-step guide on how to register, visit our ESI Registration Process Guide.
Definition of Factory Under the ESI Act
A factory under the ESI Act is defined as any premises where 10 or more persons are employed, with or without the aid of power, and where any manufacturing process takes place. This includes factories with multiple departments involved in manufacturing activities. Seasonal factories, which operate no more than seven months a year in activities such as blending or packaging, are also covered. Mines and railway running sheds are excluded from this definition. Regardless of whether all employed persons are involved in manufacturing, if a facility employs 10 or more individuals on any given day, it qualifies as a factory under this act. Explore how specific locations, like Nanded, apply these definitions.
Definition of Establishments Under ESI Act
Establishments, as per the ESI Act, are organized bodies or institutions, not necessarily limited to physical premises. Such entities are required to obtain ESI registration if they employ 20 or more individuals. Establishments with fewer than 20 employees earning below Rs.21,000 monthly are exempt. Additionally, all shops, defined broadly by the Supreme Court as premises where economic activities lead to sales or purchases, fall under the scope of ESI, including service providers like consultancy services and advertisement agencies. However, educational institutions, hospitals, and certain professional offices are generally exempted from registration requirements. For more specific guidelines relating to geographical variations, see our comprehensive Uttar Pradesh ESI guidelines.
Employee Count for ESI Registration
ESI coverage for a factory or establishment includes counting various categories beyond directly employed persons:
- Workers on leave with or without pay.
- Temporary or substitute workers employed for wages.
- Company directors receiving salaries from the payroll.
- Individuals earning over Rs.21,000 per month, although non-eligible otherwise.
- Contracted workers supervised directly by the employer.
It's important to note that apprentices or trainees learning the trade under approved schemes are excluded from these calculations when determining ESI obligations. For a deeper understanding of the benefits tied to ESI registration, you can access the Benefits of ESI Registration resource.
For complete services across major cities, our ESI Registration Services page provides further insights. If you're located in regions like Thiruvananthapuram or Aligarh, check out how our services can assist your local compliance.
To explore all the advantages offered by ESI, consider visiting our ESI Benefits List.