After receiving your Certificate of Incorporation, a Pvt Ltd company must complete several key formalities to be fully operational and compliant. Checklist: - Open current bank account - Appointment of first auditor (Form ADT-1) - Hold board meeting within 30 days - Issue share certificates - File INC-20A (Commencement of Business) - Register for GST, if applicable - Apply for Shops & Establishments license (state-wise) Non-compliance may attract penalties or freezing of the