This office is responsible for managing the office of Hazrat Khalifatul Masih. It manages the complete correspondence that is to be presented to Hazrat Khalifatul Masih and the preparation and dispatching of the replies. 

This office is also responsible for the security of Hazrat Khalifatul Masih which functions as a separate sub-section. Preparing the daily schedule of Hazrat Khalifatul Masih’s official meetings and individual/family audiences etc. is also the responsibility of this office. 

This office is also responsible for passing on Hazrat Khalifatul Masih’s directives to concerned departments or persons. 

Any letter signed by the private secretary at the behest of Hazrat Khalifatul Masih is considered Hazrat Khalifatul Masih’s directive. 

Private Secretary to Hazrat Khalifatul Masih also functions as Secretary Majlis-e-Shura. He shall be responsible to make all the necessary arrangements for Majlis-e-Shura. But Hazrat Khalifatul Masih may appoint someone else as Secretary of Majlis-e-Shura, Secretary of Majlis Intikhab-e-Khilafat or Secretary of any other Shura held on some special occasion. 
This office also has a sub-section for record-keeping of the Private Secretary office’s correspondence. This subsection is responsible for keeping a record of all official correspondence for an indefinite time and a record of all personal letters for 5 years.