ESIC contribution is not calculated by Employer at the time of filing monthly return.
the specified codes and zones will auto calculate the applicable ESIC contribution, and would reduce the same if applicable on specified zones.
Contribution| Employee's State Insurance Corporation, Ministry of Labour & Employment, Government of India see this the given rates are still the same.
I hope, firstly you may examine as to from which date the area where your unit is located was declared as implemented under section 1(3) of ESI Act, 1948 and this information can be obtained from the nearest office/Branch Office of ESIC. Thereafter you may examine and decide the issue whether the area falls in the category as mentioned in the new rule.