Jaipur, Jan 23 (ANI): Congress party leader Shashi Tharoor on Friday while attending the Jaipur Literature Festival, said that his isolation in the party was due to his views on foreign policy and national security. Tharoor, who won a seat in parliament from Kerala in 2009 and was later appointed the junior foreign minister and education minister, created controversy through his tweets and articulation. He also criticized Prime Minister Narendra Modi for gap between his articulation and implementation. An acclaimed author and prolific user of social media website Twitter, Tharoor was an under-secretary general during Kofi Annan's leadership of the United Nations.