When to apply for a fresh Income Tax Permanent Account Number (PAN) in new series

Applying for fresh Income Tax Permanent Account Number in New Series.
In the following circumstances, the assessee should apply for a fresh Income Tax Permanent Account Number:

Partition of Hindu Undivided Family into one or more new Hindu Undivided family (HUFs)

Coming into being of new Hindu Undivided Family (HUF)

Change of constitution of Partnership firm (entailing change of partners)

Splitting up or de-merger of an existing company into two or more companies.