Rawat joined the Indian Foreign Service in 1990 and served in Hong Kong and Beijing between 1992 and 1997, then in Beijing again from 2003 to 2007.[1][2] At the end of his tour in Beijing he was deputy chief of mission.[3] He later served at the Indian mission in Mauritius.[3]
In 2007 he became the head of the Ministry of External Affairs' East Asia division.[1] From 2009 to 2013 he served as the head of the India-Taipei Association, India's diplomatic mission in Taiwan.[1] From 2014 to 2017 he served as joint secretary for East Asia, and he was involved in negotiations about the 2017 Doklam standoff.[1]