Devadaha is famous ancient capital of Koliya kingdom, the maternal hometown of queen Maya Devi, Prajapati and princess Yasodhara. The site is situated at about 57km northeast of Lumbini and is well connected by the Mahendra Highway. We can observe many archaeological and historical sites extended in a large area in Devadaha region. The potential ancient sites include Kumarvarti, Khayardada, Bairimai- Kanyamai,Bhagawanipur/Devidamar, Kotahimai, the Rohini River etc. More facts on ancient Koliyan civilization will be revealed after full – fledged excavations in future.