The Girija temple at Phulher has a background, which needs mention. The ancient Mithila, the core of which is the district of Darbhanga, has had her distinct individuality and an eclectic culture. This is the land of King Janaka, whose capital was at Janakpur about 18 miles from Jainagar in Darbhanga district.

The land is also known as a part of Videha and that is why Sita, the daughter of Janaka, is also known as Vaidehi. Being intersected by rivers and streams, the area is also known from the ancient days as Tirabhukti, the land of the river banks, by which name she has been famous for at least the last fifteen hundred years.