His name features in the Limca Book of Records for winning 10 consecutive elections from the same constituency and the same party.
[3] His father, Chaudhary Himmat Singh was a Congress party worker and a participant in the Indian Independence movement.
[7] Prem Singh lived in the Lado Sarai area of Mehrauli with his wife Shivkauri; the couple had 6 daughters and 2 sons.
[8][9] Other son Yaduraj Chaudhary ventured into politics as a member of the Delhi Youth Congress.
[10] Now his eldest grandson Dev Choudhary (S/O Pramod) has followed suit and entered the political arena at the young age of just 21, ironically endorsing the Bharatiya Janata Party (BJP) because of its ideology.
Prem Singh suffered a heart attack while participating in a party event on B. R. Ambedkar's death anniversary (Mahaparinirvan Divas) on 6 December 2017.