Sainamaina Municipality is one of the new 72 municipalities formed in Nepal. It is located in Rupandehi District in Lumbini Province of southern Nepal which is known for its historical and cultural significance, especially as the birthplace of Lord Buddha. The municipality was established by merging three existing VDCs i.e. Dudharakchhe, Saljhandi and Parroha. At the time of the 2021 Nepal census it had a population of 72,648 people.