| Sir Pratap Singh Nabha, KCSI | |
| Succession: | Maharaja of Nabha |
| Maharaja of Nabha | |
| Reign: | 1928–1995 |
| Spouse: | Urmila Devi |
| Issue: | Hanuwant Singh Hemant Singh Himmat Singh Sneh Lata Kaur |
| Father: | Ripudaman Singh |
| Mother: | Sarojini Devi |
| Birth Date: | 1919 9, df=yes |
| Birth Place: | Nabha State |
Sir Pratap Singh Nabha, KCSI (21 September 1919 - 22 July 1995) was the last ruling Maharaja of Nabha. The state of Nabha was merged into India in 1948. It was annexed to Patiala and the East Punjab States Union, a new political administrative unit that comprised all the states of the Punjab.[1]
Singh was born in Nabha State in family, the eldest son and heir of Ripudaman Singh. At the age of eight, his father was deposed and Pratap Singh became the Maharaja. Pratap Singh began his schooling in the Anglo Indian school, Woodstock, in Musoorie. He was educated at the Royal Military Academy, Sandhurst and at Badingham College in Surrey.
After formally succeeding to the gadi in 1941, Pratap Singh was commissioned a Lieutenant in the British Indian Army and served in the Second World War. He was promoted to captain in 1944, Lieutenant-Colonel in 1945 and Colonel in 1946. In 1946, he was knighted with the KCSI.
Following Independence, he served as aide-de-camp to the President of India, as well as the head of the Sikh Regiment.
On 15 August 1947, Pratap Singh signed the Instrument of Accession to the Dominion of India and merged Nabha into PEPSU in 1948, from which point his rule ended. In his later years, Singh served as President of the Wildlife Society of India as well as of the Vintage Car Association of India. He was stripped of his rank and titles by the Indira Gandhi government in 1971. Singh died in New Delhi on 22 July 1995.
On 25 April 1944, Singh married Urmila Devi (1924–1997), the only daughter of Rana Udaybhanu Singh of Dholpur. The couple had one daughter and three sons:
(ribbon bar, as it would look today)