In 1929, against all his friends' advice, Singh determined to make one last journey to Tibet. He was last seen on 18 April 1929 setting off on this journey. In April he reached Kalka, a small town below Simla, a prematurely aged figure in his yellow robe among pilgrims and holy men who were beginning their own trek to one of Hinduism's holy places some miles away. Where he went after that is unknown. Whether he died of exhaustion or reached the mountains remains a mystery.