The Interim Constitution of Nepal 2007 recognizes all the languages spoken as mother tongues in Nepal as the national languages of Nepal. It says that Nepali in Devanagari script shall be the language of official business, however, the use of mother tongues in local bodies or offices shall not be considered a barrier. The use of national languages in local government bodies has not happened in practice, and discouragement in their use and discrimination in allocation of resources persist. Some analysts have stated that one of the chief causes of the Maoist insurgency, or the Nepalese Civil War (1996–2006), was the denial of language rights and marginalization of ethnic groups.