He became Deputy Director-General of the Protocol Department before departing in 1968 to serve as Deputy Principal Private Secretary to King Bhumibol. A year later he became King Bhumibol's Principal Private Secretary, and was later appointed to the Privy Council.
This passage describes the career progression of this individual, highlighting their roles in the Protocol Department, serving as a personal secretary to King Bhumibol, and ultimately being appointed to the Privy Council.