How Does ESIC Impact a 21000 Salary While Keeping Take-Home Pay the Same?

Hi,
please help me in giving ESIC impact on 21000 to client on the basis of below conditions:-
1. Both ESI deduction from associate's end. / Retaining the existing CTC
2. Employee deduction & Employer contribution / Retaining the existing Gross Salary
3. Both impact on employer. / Retaining the existing In Hand Salary
Please help me!!

You cannot recover the ESIC contribution of the employer from the employee. So, don't even think of doing it by keeping CTC the same.

In the normal course, the changes will not affect gross wages. Gross remains the same, while deductions increase. In some cases, deductions are now there though they were not there before.

If you want your employees' take-home pay to remain the same, you obviously need to increase their salary to compensate for the deductions.