Sankatahara Chaturthi — complete guide

📍 Calculated for Chennai, Tamil Nadu · India Standard Time. AstroG calculates location-sensitive timings using your selected location and local time.

Traditional guidance — follow your family or temple custom.

The monthly Krishna Chaturthi fast for Lord Ganesha, completed after your local moonrise.

Why observed

Meaning

Sankatahara Chaturthi (Sankashti Chaturthi) is the fourth lunar day of the waning fortnight (Krishna Paksha Chaturthi), dedicated to Lord Ganesha as the remover of obstacles — "sankata" means difficulty and "hara" means removing. It comes once a month; when it falls on a Tuesday it is called Angaraki Sankashti and is considered especially auspicious.

Traditional background

The Ganesha Purana and the Mudgala Purana praise the monthly Chaturthi vrata. A popular story tells how the Moon was humbled after mocking Ganesha and was restored when he worshipped Ganesha on Chaturthi; that is why the fast is completed after seeing the Moon.

Purpose

Devotees observe Sankatahara Chaturthi to seek Ganesha's help in removing obstacles, for success in new efforts, and for family well-being.

Who traditionally observes it

Devotees of all ages. Many keep a fast from sunrise until moonrise; others keep only the evening prayer.

When it is observed — and your local timing

The day is the Krishna Chaturthi that prevails at moonrise. The fast ends after the Moon rises and is seen. Moonrise differs greatly by location — by hours between India and the Americas — so AstroG shows your local date and your local moonrise.

Preparation

Keep durva (arugampul) grass, red flowers, modakam or kozhukattai, and a lamp ready.

Materials

Ganesha idol or picture, durva grass (21 blades if possible), red flowers, modakam/kozhukattai or fruit, lamp, incense, sandal paste and kumkum, and water for arghya to the Moon.

STEP 1 — Preparation

What to do: Bathe in the morning and keep the day simple.

Practical alternative: Bathe again in the evening before the main worship if the morning is busy.

STEP 2 — Clean the worship area

What to do: Clean the pooja space and place Ganesha on a fresh cloth.

STEP 3 — Sankalpam

What to do: Pray and state your intention to observe Sankatahara Chaturthi for Lord Ganesha.

STEP 4 — Prepare the materials

What to do: Wash the durva grass and prepare the naivedyam.

Why: Durva is traditionally dear to Ganesha.

Practical alternative: Abroad, where durva is hard to find, offer any fresh grass or flower with devotion.

STEP 5 — Begin the fast

What to do: Fast from sunrise, or take only fruit and milk.

Practical alternative: One light meal if health or work requires.

STEP 6 — Morning prayer

What to do: Light the lamp and chant a short Ganesha prayer.

STEP 7 — Mantra and stotra

What to do: Chant the Sankatanashana Ganesha Stotram or a Ganesha mantra.

Practical alternative: Chant 108 times with a mala or listen to a recording.

STEP 8 — Evening worship

What to do: In the evening, offer durva, flowers and naivedyam, and read the Sankashti vrata story.

STEP 9 — Wait for moonrise

What to do: After your local moonrise, look at the Moon and offer water (arghya) with a prayer.

Why: Seeing the Moon completes the observance in tradition.

STEP 10 — Complete the fast

What to do: After the Moon prayer, take the prasadam and a simple meal.

Practical alternative: If clouds hide the Moon, pray facing its direction after the local moonrise time.

Allowed foods

Fruits, milk, and in many homes sabudana or peanuts during the fast; modakam as prasadam.

Foods traditionally avoided

Grains and heavy food during the fast; non-vegetarian food; onion and garlic in many homes.

Regional traditions

Tamil tradition: Sankatahara Chaturthi is widely kept with evening Pillaiyar worship, arugampul garlands and kozhukattai; temples hold special abhishekam.

Telugu tradition: Sankashti Chaturthi vratam with evening Vinayaka puja and Chandra darshanam.

North Indian and Marathi tradition: Sankashti Chaturthi is especially popular in Maharashtra; Angaraki Sankashti draws large crowds; the fast ends after Chandrodaya.

Other regions: Customs vary — follow your family and temple.

NRI and local-time guidance

Use your own local moonrise; do not break the fast at an Indian clock time. In the Americas moonrise can be much later in the evening, so plan the evening accordingly. A picture of Ganesha, any grass or flower, and a simple sweet are enough for home worship.

Practical tips

If you are working: keep fruit and water, and do the evening worship after work.

If you are travelling: pray after moonrise wherever you are.

For children and elderly devotees: prayer without a strict fast is fully valid.

Health: consult a doctor before fasting if you have a medical condition.

Common mistakes

Breaking the fast before local moonrise; following the Indian date instead of the local Chaturthi.

FAQs

What if the Moon is not visible? — Pray after the local moonrise time; the observance is complete.

Is Angaraki Sankashti different? — It is the same vrata on a Tuesday, considered especially auspicious.

Vinayaka Chaturthi · Ganapathi Pooja · Pradosham · Personal Time

Fasting rules

Fast from sunrise until the Moon is seen after local moonrise.

Fruits, milk; sabudana or peanuts in many homes.

Foods to avoid

Grains and heavy food during the fast; non-vegetarian food.

Durva grass, red flowers, modakam/kozhukattai, lamp.

Pooja procedure

Bathe and prepare

Clean the worship area

Sankalpam

Prepare materials

Begin the fast

Morning prayer

Mantra and stotra

Evening worship

Wait for moonrise

Complete the fast

Mantra

Source: Traditional practice; family and temple customs vary.