anaki Mandir (Nepali: जानकी मन्दिर) is a Hindu temple in Janakpur in the Mithila region of Nepal, dedicated to the Hindu goddess Sita.
It is an example of Hindu-Koiri Nepali architecture. It is often considered the most important model of Koiri architecture in Nepal. Fully built in bright white and constructed in an area of 4,860 sq. feet in a mixed style of Mughal and Koiri domes, the temple is 50 meters high. It is a three-storied structure made entirely of stone and marble. All its 60 rooms are decorated with the flag of Nepal, colored glass, engravings and paintings, with beautiful lattice windows and turrets. According to legends and epics, King Janak ruled this area (called Videha) during the Ramayana period. His daughter Janaki (Sita), during her swyambar, had chosen Lord Rama as her husband, and become queen of Ayodhya. Their marriage ceremony had occurred in the nearby temple.