ESI will be deducted from the total salary, including the OT amount. There may be months during which the salary of an employee may exceed Rs 10,000 (the limit for ESI). Still, in that month, the contribution payable by the employee at 1.75% of the increased amount shall be deducted. Similarly, the employer has to contribute at 4.75% of the total wages, including the OT amount.
However, for deciding the eligibility of an employee under the ESI, the OT will not be counted. Therefore, one whose salary, including OT, becomes more than Rs 10,000, is not exempted from ESI.
In your case, the salary is Rs 3,073. OT amount is calculated as 2 times the hourly rate, i.e., 3,073/30/8 x 40 = Rs 1,024. Total salary = Rs 3,073 + Rs 1,024 = Rs 4,097.
ESI - Employee's share = Rs 71.70
ESI - Employer's share = Rs 194.60
Regards,
Madhu.T.K