Principal Secretary to the Prime Minister of India Principal Secretary to the Prime Minister of India The Principal Secretary to the Prime Minister of India (PS to the PM; IAST: ) is the senior-most bureaucrat in, and the administrative head of, the Prime Minister's Office. The officeholder is generally a civil servant, commonly from the Indian Administrative Service and occasionally from the Indian Foreign Service. The post is considered one of the most influential in the Indian civil services, and some principal secretaries are considered more powerful and influential than senior government ministers. The Prime Minister's Secretariat (PMS)—headed by an officer of the rank of joint secretary to
Civil Service (United Kingdom) three posts were split from the single holder. The last person to hold all three positions together was Gus O'Donnell, Cabinet Secretary, Head of the Home Civil Service and Cabinet Office Permanent Secretary, September 2005 – January 2012. The postholder is responsible for ensuring that the Civil Service is equipped with the skills and capability to meet the everyday challenges it faces and that civil servants work in a fair and decent environment. They also chair the Permanent Secretary Management Group and the Civil Service Steering Board which are the main governing bodies of the Civil Service. It was announced