Passage: Khushwant Singh (born Khushal Singh, 2 February 1915 – 20 March 2014) was an Indian author, lawyer, diplomat, journalist and politician. His experience in the 1947 Partition of India inspired him to write Train to Pakistan in 1956 (made into film in 1998), which became his most well-known novel.Born in Punjab, Khushwant Singh was educated in New Delhi, and studied law at St. Stephen's College, Delhi, and King's College London. After working as a lawyer in Lahore Court for eight years, he joined the Indian Foreign Service upon the Independence of India from British Empire in 1947. He was appointed journalist in the All India Radio in 1951, and then moved to the Department of Mass Communications of UNESCO at Paris in 1956. These last two careers encouraged him to pursue a literary career. As a writer, he was best known for his trenchant secularism, humour, sarcasm and an abiding love of poetry. His comparisons of social and behaviour characteristics of Westerners and Indians are laced with acid wit. He served as the editor of several literary and news magazines, as well as two newspapers, through the 1970s and 1980s. Between 1980-1986 he served as Member of Parliament in Rajya Sabha, the upper house of the Parliament of India.

Question: What was Khushwant Singh's birth name?
Khushal Singh