Pillar article
Navadurga, the Nine Nights, and Rahu's Remedial Deity
Navadurga is the set of nine forms of Durga worshipped across the nine nights of Navratri, from Shukla Pratipada through Navami. In navagraha devotion, Durga is the deity most often linked with Rahu, whose mahadasha lasts eighteen years. Reciting Durga's names on those nights is worship. It does not move Rahu to another house or shorten the eighteen years. The chart benefit, if any, is attention during Rahu's period, not a cancelled node.
Nine nights, nine forms
Sharad Navratri falls in the bright half of Ashwin. Chaitra Navratri falls in the bright half of Chaitra. Each night has a traditional form, and the sequence is a lunar tithi sequence, so the civil dates change every year and with the city's sunrise. India uses Asia/Kolkata with no daylight saving, yet Mumbai and Kolkata do not share a sunrise, and a night listed for one city can be the neighboring tithi in another. The puja belongs to the tithi in force locally. A printed mantra page that freezes one October week as eternal Navratri has mistaken a lunar festival for a solar appointment.
Rahu underneath the devotion
Rahu is the north lunar node, always opposite Ketu, exalted in the Parashari student list in Taurus and without a physical body. His eighteen-year mahadasha amplifies the house he occupies: the 10th grows public and unconventional, the 11th grows gains, the 7th grows an unusual marriage. Durga's worship is a traditional response when that period is loud, alongside Saturn's Saturday practices when Saturn is also involved. The worship does not change the Lahiri longitude. If the native's question is marriage, the 7th lord and Venus still lead. If the question is fear, the Moon's condition leads. The nine forms are a devotional calendar sitting beside those lords.
What a benefit can honestly be
A disciplined nine-night recitation can mark Rahu antardasha with a vow, charity, and cleaner habits. The antardasha length is still Rahu's eighteen years times the mahadasha lord's years, divided by 120, or the reverse if Rahu is the major lord. No verse guarantees wealth, marriage, or health. This page does not reproduce a long stotra. Families who want the full katha can take it from their priest. Jyothish SI will show Rahu's house and whether his dasha is running, using Swiss Ephemeris. That is the chart half of Navadurga. The nights themselves remain a panchang fact for the city you live in.
Frequently asked questions
Which graha is Durga linked with in navagraha worship?
Rahu. His mahadasha lasts eighteen years. The nine nights of Navratri are a lunar tithi sequence, not a cancellation of Rahu's house.
When do the nine nights fall?
Shukla Pratipada through Navami in Ashwin for Sharad Navratri, and in Chaitra for the spring observance. The civil date follows local sunrise and changes yearly.
Does the mantra move Rahu?
No. It is worship during a period. Rahu stays opposite Ketu, and the antardasha still ends by the 120-year product rule.
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D1, D9, D10, dashas, yogas, and transits, the same calculations referenced in this article.