Shani Jayanti marks the birth anniversary of Lord Shani/Shanaishchar — son of Surya and Chhaya, the deity of karma and justice — celebrated on Vaishakh Krishna Amavasya (the amanta/Maharashtra tradition); the same tithi is known as "Jyeshtha Amavasya" in the purnimanta tradition. In 2026, this tithi falls on Saturday, 16 May. Anointing the murti/stone with mustard-sesame oil, offering black sesame, and giving charity are this day's signature features. In Maharashtra, Shani Shingnapur is the main centre of the oil-abhishek tradition.
Lord Shani is believed to have been born on Vaishakh (=Jyeshtha) Amavasya — hence Shani Jayanti/Shanaishchar Jayanti. Shani is the giver of karmic results — he's believed to reward honesty, discipline, hard work, and humility, and to teach a lesson to arrogance, deceit, and injustice; hence he's regarded as the deity of justice — not cruel, but strict and impartial.
In astrology, Shani's Sade Sati (seven-and-a-half years, based on the moon sign) and Dhaiyya (two-and-a-half years) are considered difficult transits; there's a belief that worship on this day eases their hardship — this is an astrological claim, recorded here only as belief.
Shani is a slow-moving planet, regarded as a symbol of restraint, responsibility, austerity, and spiritual growth. Saturday is his day, hence special worship is performed on this day. In 2026, the Jayanti falls on a Saturday itself — this coincidence of Saturday and Amavasya is regarded as a specially potent "Shani Amavasya" yog.
Sanjna, daughter of Vishwakarma, was Surya's wife; unable to bear his intense radiance, she created an exact shadow-double of herself, "Chhaya," to serve Surya, while she herself departed for austerity. Shani was born to Chhaya — hence he's regarded as the son of Surya and Chhaya, brother of Yama and Yamuna.
During her pregnancy, Chhaya performed severe austerity of Shiva (fasting, staying in the sun without shade); under the effect of this austerity, the child was born dark-complexioned. Seeing dark Shani, Surya refused to accept him as his son — leading to father-son enmity; Shani later gained, through his own austerity, the foremost position among the nine planets as the deity of karma and justice.
Some versions attribute Shani's power/position to a boon from Shiva, others to his own austerity; some versions emphasise a "Surya's curse" beat. The exact reason for his dark complexion is also given with slightly varying detail across sources — the core remains the same, but no single detail should be treated as settled.
The popular legend of offering oil to Shani (the Hanuman-Shani episode → Shani injured → mustard oil applied) is mainly a separate legend belonging to the Shingnapur/oil-abhishek tradition — not the birth legend. The two legends are distinct and shouldn't be blended together.
All Shani devotees — especially those believed, per astrology, to have Sade Sati, Dhaiyya, Shani-mahadasha, or Shani-dosha. Devotees who worship Shani or offer oil every Saturday perform special puja on this Jayanti. What anyone does is per tradition/belief — not presented here as a universal obligation.
Shani Jayanti is a single-day birth celebration — a separate udyapan ritual isn't generally recorded. At temples, especially Shingnapur, tailabhishek/darshan rules can vary — check with the temple committee.
A Shani murti/image (or a black stone/areca nut), mustard/sesame oil, black sesame, black/blue flowers, sandal paste, akshata, a mustard-oil lamp, incense, a peepal leaf, naivedya (urad-khichdi/black chana), items for charity (black cloth, iron, sesame, oil), and aarti items.
Many devotees keep a single-meal sattvic fast; black chana, sesame oil, and urad dal are Shani-favoured foods. Meat and alcohol are avoided on this day; there's a belief in avoiding dishonesty, troubling the poor, and deceit.
The elderly, pregnant women, the unwell, or those on medication should avoid a strict fast; a light fast suited to their health should be observed instead. How strict or relaxed the fast is varies by tradition — it isn't presented here as a universal rule.
The Shani bija mantra — "Om Sham Shanaishcharaya Namah" — is a foundational chant for saluting Shani and seeking his grace.
The Dasharath-composed Shani Stotra — "Om Nilanjana Samabhasam Ravi Putram Yamagrajam…" (believed to have been composed by King Dasharath of Ayodhya) — praises Shani's blue-dark form and calm grace. The meaning and opening line are given here; since the authorship/PD status is uncertain, the full text isn't given.
The Hanuman Chalisa — composed by Tulsidas (in the public domain) — is traditionally recited for protection from Shani's hardship.
Shani Shingnapur (Ahilyanagar district): Shani in a self-manifested black-stone form; oil abhishek is the principal tradition here (per the Maharashtra Tourism department's listing). Large Tailabhishek ceremonies and crowds are reported to gather here on Shani Jayanti; the current scale and arrangements should be verified with the temple committee. The village's belief in keeping no doors or locks is well known. Detailed content on Shingnapur lives on the separate Shani Shingnapur page — only a brief mention is given here.
Amavasya falling on a Saturday ("Shani Amavasya") and oil abhishek at Shani temples every Saturday are Maharashtra customs; this year the Jayanti happens to fall on that same yog (Saturday).
In some places, day-long collective abhishek programs are organised by Brahmins on Shani Jayanti — this is a local detail.