Over Time calculation for ESI

Dear Consultants,

My requirement : Overtime is excluded from ESI Basis for the calculation of ESI eligibility but is included for the computation of ESI contribution.

Error: when I am adding Over time wage type for /112 cumulation class 12 over time calculating as ESI Basis for the calculation of ESI eligibility & ESI contribution, which is wrong, can any one help what is the processing and cumulation class specification for Over Time calculation? please do needful.

Regards,

Navesh