Nepal Ratna Girija Prasad Koirala (Nepali: गिरिजाप्रसाद कोइराला ; 4 July 1924 – 20 March 2010), affectionately known as Girija Babu, was a Nepalese politician. He headed the Nepali Congress and served as the Prime Minister of Nepal on four occasions, including from 1991 to 1994, 1998 to 1999, 2000 to 2001, and from 2006 to 2008. He was the Acting Head of State of Nepal between January 2007 and July 2008 as the country transitioned from a monarchy to a republic.