Grah Shanti Shani Pooja (Worship of Saturn) is sought for mental peace and to get rid of various diseases. Following things are associated with Shani (Saturn).
In Vedic astrology, the planet Saturn is called Shanaishwara. Saturn is regarded as an emaciated God with long physique, big teeth and tawny eyes. Shani is indolent and lame. The temperament or nature of Shani is airy. Saturn is considered to be a malefic graha. It is believed that Shani can make a person, a king or a beggar according to the native's deeds (karmas).
In ujjain it is done at navgrah temple.