In 1925, he accompanied his father, who was then the ruler of Negeri Sembilan, on a trip to the for the British Empire Exhibition in Wembley and to visit His Majesty.
Kemashyuran nama Tunku bukan sahaja di negara ini bahkan telah tersebar diseluruh penjuru alam.
Tunku's work received a favourable report and he was transferred with promotion, to the post of President of the Selangor Court.