As per Valmiki Ramayana the ashram of Gautam muni was located in an orchid of Mithila. Ahillya was there in the form of a stone statue. At present, it is known as Ahiyari. Earlier, a tapovan was here and even now four ashrams located in four directions belonging to Yagnavalk (Jagvan), Shrangi (Singiya), Bhrangi (Bhairava) and Gautam Rishi can be located here. People have great respect for this temple and they visit it to receive the blessings of Ahillya. This is located about 25 km north-west of Darbhanga.
(Ref: Valmiki Ramayana 1/48/11 to 33, 1/49/11 to 22).