He has also been secretary of the United Nations General Assembly’s Committee on Information since 2011. He completed his career with the United Nations in May 2021.

His earlier Secretariat assignments included the Departments of Special Political Questions and Peacekeeping as well as speechwriting in the Executive Office of the Secretary-General. Ramu also served as President of the United Nations Staff Recreation Council.

As a member of the Indian Foreign Service, where he was promoted to the rank of ambassador, he served as executive assistant to the Prime Minister of India between 1991 and 1994 and earlier in the Ministries of External Affairs, Home Affairs, Defence, Planning and Human Resource Development.

Before joining government service in India, he worked as a television news anchor, radio producer and host, and university correspondent for All India Radio and the Hindustan Times Evening News. His radio feature on university students in Delhi won the Asia-Pacific Broadcasting Union award.

Ramu is a Senior Fellow at the Centre for Social and Economic Progress , New Delhi and a member of the Leadership Council of the Sustainable Development Solutions Network and of the Board of Directors of the New York chapter of the United Nations Association of the United States.