"Jaishankar SAARC Yatra begins. Foreign Secy Jaishankar in Thimphu," External Affairs Ministry Spokesperson Syed Akbaruddin tweeted.
Bhutan's trip will be followed by Bangladesh on March 2, Pakistan on March 3 and Afghanistan on March 4.
During the visit to the SAARC capitals, Jaishankar will review various initiatives for the region, including SAARC satellites and regional university, as were proposed by Prime Minister Narendra Modi during his visit to Nepal for SAARC Summit last year.
Jaishankar will travel to Pakistan seven months after India cancelled foreign secretary-level talks because the Pakistan High Commissioner here held consultations with Kashmiri separatists.