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
Council of Civil Service Unions v Minister for the Civil Service Council of Civil Service Unions v Minister for the Civil Service Council of Civil Service Unions v Minister for the Civil Service [1984] UKHL 9, or the "GCHQ case", is a UK constitutional law and UK labour law case that held the Royal Prerogative was subject to judicial review. In 1984, the government of Margaret Thatcher banned employees of the Government Communications Headquarters (GCHQ) from joining any trade union for "national security" reasons by an Order in Council using the Royal Prerogative. The Council of Civil Service Unions claimed in judicial review that defeated their legitimate expectations, to collectively bargain