Shani Dosha is the bad effects caused by the positioning of Shani in a person’s horoscope. Shani dosha parihara include various prayers, pujas and rituals performed by people affected by it. The most widely practiced pariharas are Saturday fasting, prayers to Hanuman, Ganesha and Shiva. Ayyappa is also worshipped in South India to overcome difficulties of Shani.
Visit to Hanuman, Shani and Ganesha temples on Saturdays is highly effective in keeping a check on Shani Dosha.
The offerings that can be made are black clothes and black Til (sesame seeds). Feeding hungry people is also considered highly meritorious.
One must not think that all troubles are caused by Shani. The other Grahas can also cause trouble. There are also stories of people attaining peace and prosperity during Shani Dosha period.