Bhupinder Singh was born at the Moti Bagh Palace, Patiala and educated at Aitchison College.
At age 9, he succeeded as maharaja of Patiala state upon death of his father, Maharaja Rajinder Singh, on 9 November 1900.
He served on the General Staff in France, Belgium, Italy and Palestine in the First World War as an Honorary Lieutenant-Colonel, and was promoted Honorary Major-General in 1918 and Honorary Lieutenant-General in 1931.
The royal was also close to Adolf Hitler.
Here one of the Maybach presented to the Maharaja by Hitler.