A fast on the planet's weekday, or on days like Ekadashi: as your health and routine allow, with fruit or one meal too.
The planet's weekday fast or Ekadashi, within your health; ask a doctor if unwell, pregnant or on medicines.
Sun
Sun
Sunday fast
One simple meal in the day, traditionally often without salt. Begin the day by offering water to the Sun.
When: Sundays (tradition starts from the first Sunday of Shukla paksha)
Tradition
Do / don't
Do
Keep drinking enough water.
Don't
If you are unwell, pregnant or on medication, skip the fast or ask your doctor first.
Moon
Moon
Monday fast
One simple meal or fruit only; begin the day by offering water to Shiva.
When: Mondays (tradition starts from the first Monday of Shukla paksha)
Tradition
Do / don't
Don't
If you are unwell, pregnant or on medication, skip the fast or ask your doctor first.
Moon
Purnima fast
Keep the day simple on Purnima and eat after offering water (arghya) to the Moon in the evening.
When: Full-moon day
Tradition
Do / don't
Don't
If you are unwell, pregnant or on medication, skip the fast or ask your doctor first.
Mars
Mars
Tuesday fast
One simple meal, traditionally often without salt (jaggery-chana or something sweet). Begin the day remembering Hanuman.
When: Tuesdays (tradition starts from the first Tuesday of Shukla paksha)
Tradition
Do / don't
Don't
If you are unwell, pregnant or on medication, skip the fast or ask your doctor first.
Mercury
Mercury
Wednesday fast
On Wednesday, eat one simple meal (such as moong khichdi) or only fruit; remember Ganesha or Vishnu in the morning.
When: Wednesday, starting on a Shukla-paksha Wednesday
Tradition
Do / don't
Do
Choose how many Wednesdays suits you; tradition often mentions 7, 11 or 21
Don't
If you are unwell, pregnant or on medication, skip the fast or ask your doctor first
Mercury
Ekadashi fast
Tradition links Mercury with devotion to Vishnu; on Ekadashi, keep a fruit fast or eat once, without grains.
When: Ekadashi of each fortnight
Tradition
Do / don't
Don't
If you are unwell, pregnant or on medication, skip the fast or ask your doctor first
Jupiter
Jupiter
Thursday fast
On Thursday, eat one simple yellow meal (such as chana dal or besan); remember Vishnu in the morning, and you may read or hear the Thursday vrat katha.
When: Thursday, starting on a Shukla-paksha Thursday
Tradition
Do / don't
Do
Choose how many Thursdays suits you; tradition often mentions 16
Don't
If you are unwell, pregnant or on medication, skip the fast or ask your doctor first
Jupiter
Ekadashi fast
Tradition links Jupiter with devotion to Vishnu; on Ekadashi, keep a fruit fast or eat once, without grains.
When: Ekadashi of each fortnight
Tradition
Do / don't
Don't
If you are unwell, pregnant or on medication, skip the fast or ask your doctor first
Venus
Venus
Friday fast
On Friday, eat one simple white meal (such as kheer or rice); remember Lakshmi or the Goddess. In North India the Friday Santoshi Mata vrat is also common, in which nothing sour is eaten.
When: Friday, starting on a Shukla-paksha Friday
Tradition
Do / don't
Do
Choose how many Fridays suits you; tradition often mentions 16 or 21
Don't
If you are unwell, pregnant or on medication, skip the fast or ask your doctor first
Saturn
Saturn
Saturday fast
One simple meal in the day (with urad or sesame), or fruit and milk. Light a lamp in the evening and break the fast. Keep it only as far as it is comfortable.
When: Saturday; tradition starts from the first Saturday of Shukla paksha
Tradition
Do / don't
Do
Keep drinking water; go only as far as your body allows
Don't
If you are unwell, pregnant or on medication, do not fast, or ask your doctor first
Saturn
Ekadashi (optional)
On both Ekadashis of the month, skip grains and eat fruit. It is a fast of overall self-discipline, not tied to one planet.
When: Each Ekadashi
Tradition
Do / don't
Don't
If you are unwell, pregnant or on medication, do not fast, or ask your doctor first
Rahu
Rahu
Saturday fast (for Rahu)
Rahu has no weekday of its own; tradition usually keeps a Saturday fast for Rahu. One simple meal or fruit in the day.
When: Saturday
Tradition
Do / don't
Don't
If you are unwell, pregnant or on medication, do not fast, or ask your doctor first
Rahu
Ekadashi (optional)
On both Ekadashis of the month, skip grains and eat fruit; it is held to be a fast of self-discipline.
When: Each Ekadashi
Tradition
Do / don't
Don't
If you are unwell, pregnant or on medication, do not fast, or ask your doctor first
Ketu
Ketu
Sankashti Chaturthi (Ganesha) fast
Ketu has no weekday of its own. Tradition links Ketu with Ganesha, so many keep the Sankashti Chaturthi fast: fruit by day, a meal after moonrise. In some places a Tuesday or Saturday fast is kept instead.
When: Chaturthi of each Krishna paksha
Tradition
Do / don't
Don't
If you are unwell, pregnant or on medication, do not fast, or ask your doctor first
Ketu
Ekadashi (optional)
On both Ekadashis of the month, skip grains and eat fruit; it is held to be a fast of self-discipline.
When: Each Ekadashi
Tradition
Do / don't
Don't
If you are unwell, pregnant or on medication, do not fast, or ask your doctor first
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