From 2004 to 2007 , Jaishankar was Joint Secretary ( Americas ) at the Ministry of External Affairs in New Delhi . In this capacity , he was involved in negotiating the US-India civil nuclear agreement and improving defence co-operation , including during relief operations following the 2004 Indian Ocean tsunami . Jaishankar was also involved with the conclusion of the 2005 New Defense Framework and the Open Skies Agreement , and he was associated with the launch of the US-India Energy Dialogue , the India-US Economic Dialogue , and the India-US CEO 's Forum . In 2006 – 2007 , Jaishankar led the Indian team during the negotiations on the 123 Agreement with the United States . He also represented the Indian government at the Carnegie Endowment International Non-proliferation Conference in June 2007
2004 Indian Ocean tsunami
2004 Indian Ocean earthquake and tsunami
Subrahmanyam Jaishankar