 Nyorai mberi kweiyi ndima - Muna 1815, Nepal yakarasikirwa nenharaunda iyi kuEast India Company kuburikidza neSugauli Treaty. Kwamakore 45 yakanga iri rutivi rweIndia yeBritain uye yakadzokera kuNepal muna 1860 mukubvuma kutsigira kudzvinyirirwa kwechiitiko cheIndian Independencemuna 1857. Nhasi, iyi nharaunda yakabatanidzwa ichiri kunzi Naya Muluk zvinoreva kuti nyika itsva. Nharaunda yeKarnali yakaiswa parutivi seRoyal Hunting Reserve muna 1969 uye yakanyoreswa se Royal Karnali Wildlife Reserve muna 1976. Muna 1982, rakaziviswa seRoyal Bardia Wildlife Reserve uye rakawedzera kuti ribatanidze Rwizi rweBabai Rwizi muna 1984. Pakupedzisira, muna 1988, nzvimbo yakachengetedzwa yakaziviswa senzvimbo yakachengetedzwa. 