Shri Shani Dev
The just and impartial lord of the planet Saturn, one of the Navagraha, who rewards and disciplines strictly according to one's own karma.

Who Shri Shani Dev is
Shani is the deity of the planet Saturn, one of the Navagraha (the nine celestial bodies) of Hindu astrology. He is the son of Surya, the sun god, and Chhaya ("shadow"), and brother of Yama, the god of death, and of the river goddess Yamuna. He is widely regarded as the most feared yet most just of the Navagraha. That is not because he is malevolent, but because he is scrupulously impartial, giving each person exactly the results their own karma has earned, regardless of status or wealth. That is why he is called Karmaphaladata, "giver of the fruits of action", and Nyayadhish, the judge.
Why "the slow one"
His other name, Shanaishchara, means "the one who moves slowly". Saturn is the slowest planet visible to the naked eye, spending about two and a half years in each zodiac sign and about thirty years going round all twelve. Tradition explains this with a story: Shani walks with a limp from an injury to his leg. His results are slow in the same way: patient, lasting, and hard to rush.
Why he's feared, and misunderstood
Shani is associated with periods of hardship. Sade Sati is the roughly seven-and-a-half-year period when Saturn passes through the signs before, on and after one's natal moon sign, and Dhaiya is a two-and-a-half-year period. Both can bring delay, pressure and a reckoning. Tradition frames this not as punishment but as karma coming due, and as discipline that strengthens a person. Just as important, sincere devotion, honesty, hard work and care for the poor are said to soften even a difficult Shani period considerably. People who work hard and treat labourers and the needy fairly are said to be under his protection.
Iconography and associations
He is shown dark-complexioned, dressed in black or blue, riding a crow (sometimes a vulture or a buffalo), holding a sword, arrows or a trident. His day is Saturday (Shanivar), his colour black or dark blue, his metal iron and his gem the blue sapphire (neelam). His gaze is traditionally considered so powerful that images often show him looking downward. Some traditions say that is why Ganesha's head was lost (see Shri Ganesh).
How he is worshipped
On Saturdays devotees offer mustard oil to his image, often pouring it over a black stone or iron idol, along with black sesame, black urad dal, iron items and black cloth, and light a mustard-oil lamp under a peepal tree in the evening (see Saturday Shani Bhakti and Shami Jal Arpan). Giving to the poor, especially food, blankets or footwear, is considered one of the best offerings to him. Home practices include the Shani Chalisa, the Shani Aarti, the Shani Gayatri Mantra and the Shani beej mantra.
The Hanuman connection
Devotion to Hanuman is one of the most widely recommended ways to ease Shani's harsher effects. A popular tradition says Hanuman freed Shani from Ravana's captivity, and in gratitude Shani promised never to trouble Hanuman's devotees. Reciting the Hanuman Chalisa on Saturdays is therefore common during Sade Sati.
Festivals and temples
Shani Jayanti falls on the new moon of Jyeshtha in North India, and a new moon that falls on a Saturday, Shani Amavasya, is especially important for his worship. His best-known temple is Shani Shingnapur in Maharashtra, where Shani is worshipped as a black stone slab in the open and, famously, village houses traditionally have no doors because he is believed to protect them. The Thirunallar Saneeswaran temple near Karaikal is the Shani shrine among Tamil Nadu's Navagraha temples.
Jalabhishek
Daily Bhakti
Mantra
Shani Mantra: Mool, Beej & Tantrokta
Three traditional Shani mantras — the basic Mool Mantra, the seed Beej Mantra, and the Tantrokta Mantra — with proper japa niyam.
Read more →MantraShani Gayatri Mantra
A Gayatri-pattern mantra invoking Shani Dev, son of the sun, chanted for relief from a difficult Saturn period.
Read more →Stotra
Temple
Vrat
Puja Vidhi
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