Bangladesh will meet India in the Asian Games cricket last four Friday after scraping home by two runs in a massive fright against Malaysia in the quarter-final.
Bangladesh stayed on track for a second title, but only just, after managing a miserly 116/5.
They were on the brink of defeat with Malaysia needing five runs off the final over, after Virandeep Singh's sumptuous 52 put the Malaysians within reach of a major upset.
But Bangladesh held on thanks to a tight last over from Afif Hossain, who called on all his experience from 63 Twenty20 Internationals to keep his country alive.
"One good thing was we didn't lose hope, we didn't give up the game until the last ball," said Bangladesh skipper Saif Hasan after Malaysia were restricted to 114/8.
"Everyone, especially Afif, held their nerve."
T20 cricket has been played at the Asiad twice before, at Guangzhou 2010 and Incheon 2014, with Afghanistan runners-up both times, to Bangladesh and then Sri Lanka.
