India Compliance Account

Dear Team,

I have Installed ERPNEXT Version-14 ,and it have multiple companies, Companies doesn’t have any parent company.

I need to enable the API for India Compliance Account,in this 2 companies are applicable for E-Invoicing and other 2 are not applicable for E-Invoicing.

To setup the India Compliance Account do i need to login with the companies details which is applicable for E-Invoicing?

Also " India Compliance Account" can be created for single company GSTIN,or we can create an account and we can map other companies details in the Account like we use to do in “adequare-gsps-e-invoicing-services” account?

Please guide me in this.
Thanks In advance.