New Delhi- Union external affairs minister Sushma Swaraj will embark on a 5 day visit to three South East Asian countries Thailand, Indonesia and Singapore.Ms Swaraj will start her visit from Thailand and will hold an official meeting with Thai Foreign Affairs Minister Don Pramudwinai.All aspects of bilateral relations with Thailand will be discussed with particular focus on political, defence and economic ties and on further enhancing India’s engagement with ASEAN countries.