Professional Tax Employee code is not mandatory in GST registration.
It may be required under state laws for certain states but is not required compulsorily for GST registration.
You can leave the field blank.
Direct Tax Team
Entrecap Business Services
The above answer is with respect to the specific query (with limited inputs) asked on an open platform. It shall not constitute or mean or purport to mean actionable legal or professional advice in any manner. Readers are advised to speak specific professional advice before making a decision.Team Entrecap Business Services, while attempting, to answer a query, to the best of its ability, is in no way responsible for any action taken by anyone based on above answer.