Change in director with share transfer

rits (Student CA Final ) (91 Points)

20 May 2022  
A director holding 50% share in pvt ltd company wants to resign.
A new director is to be appointed who will hold 10% share.
so new shareholding ratio for old director and new director will ne 90:10
can anyone help me plz...
what should be the process of share transfer and director change??
what Roc compliance are required in this case.
plz help.