According to Vedic Astrology the planet Saturn is called Shanaiswara. The name Shanaiswara means "slow mover". Shani, the son of the Suryadev born to his shadow wife Chaya is the slowest of the Grahas. Saturn takes 2 1/2 years in each Rasi, completing one cycle every 30 years. Shanidev plays the role of a judge in human lives. This Diety in Hinduism who keeps an eye on our deeds and depending on our Karmas we will be rewarded or punished by Shani. Shani is the most feared of all dieties because of his power to turn the king into a pauper within a moment. King Vikramaditya is one such person who had to suffer the wrath of Shanidev.Shani is most powerful in the 7th house. Saturn rules over the two sidereal signs of Capricorn and Aquarius. Shani exalts in Libra and falls in the sign of Aries. Saturn is particularly a beneficial planet for Taurus and Libra Ascendants. A malefic Shani could mean diseases like arthritis, rheumatism, asthma, gout etc. Saturn is generally known to affect one adversely on occasions when he occupies certain positions in one's horoscope like the Saade Sati (7 1/2 years) ,Ashtama Shanaiswara (Saturn in 8th house - 2 1/2 years) etc. Shani Puja and Grah Shanti Shani Pooja are some remedies done to appease planet Saturn and reduce the hardships one will have to face during such bad times. Apart from that there are a number of remedial measures one can follow including chanting Shani Mantras. The Shani Mantra has to be chanted facing the west and a minimum of 7 times a day. One can chant the mantra 108 times using a rudraksha rosary and by keeping a shani yantra for better results. Given below are some of the Mantras of Shani one can chant to please Shani and reduce the malefics.

"Om Hlim Sham Shanaye Namah"
"Om praam preem praum sah shanayishraya namah"
"Om sham shanayscharaya namaha"
"Aum Aing Hring Shring Shung Shanaishcharaye Namah Aum"

Shani Gayatri Mantra

"Om Sanaischaraya vidhmahe

Sooryaputraya dhimahi

tanno manda prachodayat"

Shani Dhyan Mantra

Nilanjana samabhasam raviputram yamagrajam
chaya martanda sambhutam tam namami shaishcharam

Meaning

I bow to Lord Shani, who is black in colour and son of Sun and born to Chaya and brother of Yama , who moves very slowly.

Saneeswaran is reputed to be both a giver and destroyer. Anyone who sincerely pray to Shanidev will not only be freed from troubles but also gets a life that one desires.

• Observe fasts on 51 Saturdays and take Khicdi made of rice and black urad daal after the sunset.
• Wearing Blue Sapphire Gemstone
• Wearing 14 Mukhi Rudraksha or 7 Mukhi Rudraksha or a Saturn Mala comprising of 36 seven mukhi beads and one 14 mukhi rudraksha bead.
  
• Worship Lord Hanuman by chanting his mantras on Saturday and light ghee lamp in front of the idol.
• Donate sesame seeds on Saturday
• Wear Shani Yantra Pendant
• Wear Shani ring (Available at Shani Shinganapur)
• Praying to Lord Shiva and chanting the Mahamrityunjaya Mantra