Dear Shiv,
As per the ESIC Act, when ten or more employees are working with the aid of power (like in manufacturing companies where production is based on power) and receiving a salary less than 15K, or when twenty or more employees are working without the aid of power and receiving less than 15K, then ESIC is applicable.
1. 10 or more with the aid of power and receiving less than 15K (10 employees must have a salary of less than 15K).
2. 20 or more without the aid of power and receiving less than 15K (20 employees must have a salary of less than 15K).
If you have 60 employees and only 5 of them are receiving a salary less than 15K, then ESIC is not applicable. However, when the number of employees exceeds 10 who are receiving a salary less than 15K, ESIC becomes applicable. Once you are registered with ESIC and have been allotted an ESIC code, even if the number of employees receiving a salary less than 15K falls below 10 or 20, you are still required to deposit ESIC contributions.
Rajiv Singh