The year was 1981. A young Assistant Superintendent of Prison (ASP) at Tihar Jail, Sunil Gupta, was facing suspension, after a surprise visit of the then Home Minister, Giani Zail Singh. Charles Sobhraj, a notorious serial killer came up to him and asked, “Do you need money?” Gupta declined, gently. It was an apparently kind gesture, unusual for a serial killer, Gupta tells?Outlook.?Years later, Sobhraj wrote in his book about Gupta’s honesty, that there was only one officer he could not buy with money. Sobhraj, during his time in Tihar, built cordial relations with several officers, inmates, lawyers and journalists.