One of the 108 Siddha Peeths, this Devi Temple is 21 km from Tanakpur. The surrounding valleys echo with the holy chantings of the devotees climbing up to the top for darshan, creating an atmosphere of spirituality. From Purnagiri, also known as Punyagiri, the river Kali descends into the plains and is known as Sharda. For visiting this shrine one can go upto Thuligaarh by vehicle. From this place one has to trek (the road is under construction upto Tunyas ). After the ascent of Bans ki Charhai comes Awalakhan (the new name is Hanuman Chatti).The south - western part of 'Punya Parvat' can be seen from this place.