Dear Sunil,
ESI is contributed from both the sides Employee as well as Employer.
It is been calculated on the basis of Gross salary per month and the maximum ceiling is 10000 Rs./Month.
The contribution from both the sides is as below-
Employee Side- 1.75% of gross/month
So if gross of an employee is 8000/month then
ESI contribution would be 8000*1.75% = 140 Rupees
Employer side- 4.75% of gross/month
ESI contribution would be 8000* 4.75% = 380 Rupees.
PF is also contributed from both the sides @ 12% of Basic salary only. Out of employer's 12%, 8.33% goes to Pension Fund and rest 3.67% goes to PF fund.
ESIC challans are deposited at every month on or before the 21st of the month, where as return is submitted half yearly along with the copy of challans deposited.
Regards,
Amit Seth.