New Delhi: Prime Minister Narendra Modi to embark on a two-day visit to the Asian nation, Brunei on September 3-4, and thereafter Singapore, Secretary East in the MEA, Jaideep Mazumdar said in a special briefing on Monday. He noted that the upcoming visit will be the first-ever bilateral visit by an Indian Prime Minister to Brunei. The visit coincides with the 40th anniversary of the establishment of diplomatic ties between India and Brunei.