In an episode of "Who Do You Think You Are?" first broadcast on 1 October 2015 on BBC One, Rani investigated the history of her maternal grandfather Sant Singh (born Sant Ram, in Sarhali in 1916, died 1975), in particular learning more about his first wife and children, who died during the violence of the Partition of India in 1947, while he was a thousand miles away in Kirkee, serving in the British Indian Army, which he had joined in August 1942. Rani discovered that her maternal grandfather was born into a Hindu Taggar family, but converted to Sikhism as a young man in accordance with a custom prevalent at the time. He continued to serve in the Indian Army after Indian independence, retiring as a "subedar" (equivalent to a warrant officer) in 1970.