Until his father, Sir Pratap Singh's death in 1922, Hanut Singh served as his private secretary.
From 1923 to 1925, he served as Comptroller of the Royal Household of Jodhpur, then as Officer of the Royal Stables until 1933, when he was promoted to Comptroller of the Royal Stables.
In 1934, he was promoted to the rank of Major in the Jodhpur State Forces.
He was awarded the title of Rao Bahadur in 1937.
In 1941, he was promoted to the rank of Lieutenant-Colonel and became the Military Secretary for Jodhpur, serving until 1948.
Hanut Singh was promoted to Colonel in 1946 and to Brigadier in 1947.

An outstanding polo player, he played and won many games for Jodhpur.
Later he fielded his own team, Ratanada, with two of his sons, Rao Raja Bijai Singh and Rao Raja Hari Singh.
Team Ratanada, won almost every tournament in India for many years.
Until his father, Sir Pratap Singh's death in 1922, Hanut Singh served as his private secretary. From 1923 to 1925, he served as Comptroller of the Royal Household of Jodhpur, then as Officer of the Royal Stables until 1933, when he was promoted to Comptroller of the Royal Stables. In 1934, he was promoted to the rank of Major in the Jodhpur State Forces. He was awarded the title of Rao Bahadur in 1937. In 1941, he was promoted to the rank of Lieutenant-Colonel and became the Military Secretary for Jodhpur, serving until 1948. Hanut Singh was promoted to Colonel in 1946 and to Brigadier in 1947.
An outstanding polo player, he played and won many games for Jodhpur. Later he fielded his own team, Ratanada, with two of his sons, Rao Raja Bijai Singh and Rao Raja Hari Singh. Team Ratanada, won almost every tournament in India for many years.
Hanut Singh