How to find missing ESI number - the employee already has ESI number but the number was missing

Dear Friends, ESI new registration - the employee already has ESI number but the number was missing, and i register new IP the error showing the employee already have esi number and how to find the old number using mobile or Adhara number.

you can contact with his previous employer.

Sir
Missing esic account number.

Is it possible to get missing ESI No through UAN no

UAN is related to PF and you cannot get the details of ESI from UAN. If the ESI number is missing, you cannot find it from the online systems but the only way is to approach the previous employers or to approach the Branch Office of the ESI where the previous employer was located.

This Can be possible by the calling to the ESIC help centre number, by providing the previous employment details one can get the IP number.
Few Months ago I utilised the help centre number to find the ESIC challan number and got the same.

Anil Pandey.