Fasting (Vrat) Remedies: Planet-Wise Fasting Days, Rules & Benefits

Quick answer: Each planet owns a weekday fast — Sunday (Sun), Monday (Moon), Tuesday (Mars/Ketu), Wednesday (Mercury), Thursday (Jupiter), Friday (Venus), Saturday (Saturn/Rahu). The classical logic: you voluntarily practice the restraint the planet would otherwise impose involuntarily. Traditional durations run 11–51 weeks depending on the planet; partial fasts (fruits, milk, one light meal) carry the same spirit for those who can't fast fully.

Why fasting is a remedy: the classical logic

Vrat means "sacred vow" — the fast is the outer form of an inner commitment. The remedial logic, articulated across the vrat-katha literature and the upaya framework, is elegant: every afflicted planet demands a discipline; the fast lets you offer it voluntarily.

• Saturn afflicts through restriction → the Saturday fast practices voluntary restriction
• Mars afflicts through uncontrolled impulse → the Tuesday fast practices self-command
• Rahu afflicts through illusion and excess → the Saturday fast practices sobriety and truth
• The Moon afflicts through emotional turbulence → the Monday fast practices calm and simplicity

This is why classical teachers rank vrat so highly: unlike a gemstone, which amplifies energy, fasting trains the native in exactly the quality the planet governs. The remedy and the character correction are the same act.

The complete planet-wise fasting table

How to observe a planet fast: the traditional method

The evening before

Eat a light, early, satvik dinner. Set the sankalpa (intention): name the planet and the number of weeks you're committing to.

The fast day

1. Rise before sunrise, bathe, wear clean clothes (the planet's color if observing strictly)
2. Morning worship: the planet's mantra 108 times + offering at its associated temple or home altar
3. Daytime: fruits and milk permitted in most traditions; water always permitted. Engage the day's discipline from the table above — this is the actual remedy, not the hunger
4. Evening: the planet's daan (donation) — give the associated items to the needy
5. Breaking: after sunset (moonrise for Monday), one simple satvik meal featuring the planet's foods

What breaks the spirit of the fast (even if technically "fasting")

• Arguing, gossiping, or deceiving on the fast day — the texts are blunt that a "fast" with a foul mouth is worse than no fast
• Feasting elaborately at night to "compensate" — the meal should be simple
• Announcing your fast for admiration — vrat is between you and the discipline

Partial fasts: the tradition's own accommodation

The vrat-katha literature explicitly provides phalahar (fruit-diet) and ekabhakta (one-meal) variants for the elderly, the ill, pregnant women, and laborers. A diabetic eating light satvik food with no snacking, maintaining the day's discipline and mantra, is observing the vrat in full spirit. Anyone with a medical condition should consult their doctor before any fast — this is non-negotiable and fully compatible with tradition.

Famous extended observances

• Solah Somvar: 16 consecutive Mondays for Moon/Shiva — the most famous vrat in North India, traditionally observed for marriage and emotional blessings
• 21 Tuesdays: the standard Mars/Hanuman vrat for courage and obstacle removal
• 51 Saturdays: the extended Saturn vrat for Sade Sati and Shani dasha — a serious, monk-grade commitment
• Karva Chauth / Teej / Vat Savitri: Moon–Venus–marriage vrats in the women's tradition, showing how vrat weaves into life-cycle ritual

Fasting + the other upaya: the complete weekly template

For someone remedying Saturn during Sade Sati, a classical week might look like:

• Saturday: fast + Hanuman Chalisa + black sesame daan + serve the poor
• Tuesday: Hanuman Chalisa (no fast needed unless remedying Mars too)
• Daily: Shani beeja mantra 108 times

The pattern: one anchor fast (the primary afflicted planet) + daily mantra + weekly daan. This is the sustainable classical template — not seven fasts a week.

Classical basis

Vrat observances are documented across the vrat-katha literature, the Puranas (especially Skanda and Padma Puranas' vrat sections), and the general upaya framework of the Parashara tradition. The weekday–planet correspondence itself is the classical planetary week (Sun through Saturn + nodes), shared with the global seven-day week.

FAQ

Do I need to fast every week without break?

Traditional counts (16 Mondays, 21 Tuesdays) assume consecutive weeks. If illness or travel breaks the sequence, classical guidance is to resume and extend — or restart for strict observances like Solah Somvar. Practicality: resume, don't abandon.

Can I drink water during the fast?

Yes — water is permitted in virtually all planet-fast traditions (these are not dry fasts). Some strict Saturn observances limit even water until evening; the standard form allows it.

Is Monday fasting only for women?

No — Solah Somvar is popularly associated with women's marriage prayers, but Monday fasting is a Moon remedy for anyone with Moon affliction, and Shiva worship on Mondays is universal.

What if my fast day falls on a festival or travel?

The tradition allows shifting with sankalpa — observe the fast the next day, or keep the discipline without the food restriction. Intention and consistency outweigh calendrical perfection.

One next step: choose ONE planet's fast — the most afflicted functional planet in your chart (free kundli) — and commit to its traditional count. One completed vrat teaches the whole system.