in 2014, seriestha was chosen to represent malaysia at world championships of performing arts. she won the gold medal for classical opera, three silver medals for contemporary, world music and variety category (vocal), a special accolade under industry award and a medal for classical champion of wcopa. in august 2014, she was crowned as miss world malaysia 2014 at corus hotel, kuala lumpur and represented malaysia in miss world 2014 in london. she won the miss world talent title and was named one of the top 25 quarter-finalist.