Although the stated reason for his second marriage was his first wife being issueless, it was speculated that the actual reason was the influences of Akali leaders who wanted the future Maharaja of Patiala to marry a woman from a Jat Sikh family in order to beget genuine Sikh heirs.

[4] Following his accession to the throne of Patiala, Singh pursued a political and diplomatic career, serving as chancellor of the Chamber of Princes from 1943 to 1944.

The late Harkishan Singh Surjeet, of the Communist Party of India (Marxist), witnessed the events and claimed in an interview: 'The communal attacks on the minorities were definitely planned.

Maharajas of Patiala and Faridkot, and Yadavindra Singh is quoted as having said "We won't leave a Muslim here" at a party with British officers.

The late Harkishan Singh Surjeet, of the Communist Party of India (Marxist), witnessed the events and claimed in an interview: 'The communal attacks on the minorities were definitely planned.

Maharajas of Patiala and Faridkot, and Yadavindra Singh is quoted as having said "We won't leave a Muslim here" at a party with British officers.

[15] In 1956, Singh donated the Anand Bhawan, a 150 bigha palace, to the Government of Punjab (before the creation of Himachal Pradesh).

[8] Singh also donated Moti Bagh Palace to the Government of India, which became the Netaji Subhas National Institute of Sports.

[20] He continued his career from 1956 onwards, serving as Indian delegate to the United Nations General Assembly from 1956 to 1957 and to UNESCO in 1958.

He was succeeded as family head by his son Captain Amarinder Singh, who is a politician with the formerly Congress now in the Bhartiya Janata Party and who served as Chief Minister of the Indian State of Punjab from 2002 to 2007 and again starting in 2017 to 2021.