This 600 year old temple is dedicated to Karni Mata, Deshnok is situated 30 km from Bikaner. A famous mystic of her times, believed to be an incarnation of goddess Durga. The temple has huge silver gates and a marble door both donated by the Maharaja Ganga Singh. This temple is quite famous for a large number of brown rats running around the temple complex fearlessly. It is believed that the souls of dead Charans (traditional bards, the devotees of Mata) reside in these rats. It is considered very lucky to spot a rat in the temple. During the time of aarti, these rats are offered sweets, grains, etc by the devotees. The Karni Mata temple is thronged not only by the Rajasthanis. Rather, devotees from all over India and even abroad pay a visit to the temple. At the time of Navaratri, a fair is held at the temple. Devotees from places far and wide flock to the temple at that time, some even on foot. Day by day, the faith in Karni Mata is increasing, attracting more and more devotees to the place. Whenever the wishes of the devotees get fulfilled, they offer silver and gold to the goddess at the temple.