From 1974 to 1975 he was Business Officer in Hanoi.[1]
From 1975 to 1980 he was Deputy Secretary of the Ministry of Foreign Affairs (India).[citation needed]
From 1980 to 1982, he was Director (Foreign Secretary’s Office).[1]
Diplomatic service
In 1981 the government of Indira Gandhi asked for another assignment for George Brevard Griffin (1916–2010), counsellor at the US mission in New Delhi, who was already in Calcutta during the Bangladesh Liberation War.[2][1] In 1981 Prabhakar Menon was appointed an officer at the Indian mission to Washington D. C. but the government of Ronald Reagan did not accept him.[3][1]
Prabhakar Menon was ambassador to Dakar (Senegal) from 1986 to 1989.[5]
In 1989 he was the ambassador and deputy permanent representative of India to the United Nations.[1]
From 1992 to 1996, Ambassador Prabhakar Menon was advisor on foreign affairs to Prime Minister Shri P. V. Narasimha Rao, while posted as Joint Secretary (Prime Minister’s Office).[1]
^P. V. Narasimha Rao's statement in Lok Sabha 08 September 1981: Mr. Griffin was till recently the Deputy Chief of Mission in the US Embassy in Kabul. After a careful evaluation of Mr. Griffin's activities during his earlier posting in India, the Government of India requested the United States to reassign him to another post. Government's intention was to avoid the likelihood of friction being...
^NEW AMBASSADORS NAMED — New Delhi, l Aug— Miss Arundhati Ghose, now ambassador to the Republic of Korea, has been appointed ambassador to the German Democratic Republic, succeeding Mr T. Prabhakar Menon.
^Prabhakar Menon, joint secretary in the Prime Minister's office (PMO), has been appointed ambassador to Netherlands, an official release said in New Delhi on April 11.