The PMO is headed by the Principal Secretary to the Prime Minister of India, currently Pramod Kumar Mishra.

The PMO was originally called the Prime Minister's Secretariat until 1977, when it was renamed during the Morarji Desai ministry.

The Prime Minister's Official Website is available in 11 Indian languages namely Assamese, Bengali, Gujarati, Kannada, Malayalam, Meitei (Manipuri), Marathi, Odia, Punjabi, Tamil and Telugu in addition to English and Hindi, out of the 22 official languages of the Indian Republic.

The Prime Minister has traditionally been the Minister-in-charge of the Ministry of Personnel, Public Grievances and Pensions and the Departments of Space and Atomic Energy.

[4] The Prime Minister's Office (PMO) located in South Block, overlooking the grandeur of Rashtrapati Bhawan.

Hi-tech accessories and sophisticated communication devices were installed to monitor domestic and international developments.