Koirala's writings (both political and literary) were banned until recently. Nepalese youths spent several years of imprisonment just on the charges of possessing Koirala's writings. Another problem is that his rare and important writings have been scattered all over. Old newspapers and magazines (including the underground publications) have to be researched. Libraries, museums, and archives in Kathmandu, Banaras, Calcutta, New Delhi, London, Paris, Berkeley, Stanford, and many other places have to be visited to collect the materials on Koirala. As a result, one can hope to produce volumes of his political writings and literary works.