Quick answer: The main Karthika Somavaram upavasam rules are simple: choose a level of fast you can keep with devotion, bathe early, worship Shiva, light a lamp after sunset and break the fast after the evening puja. The four traditional options are a full fast (upavasam), ekabhuktam (one meal, usually at midday), naktam (no food by day, one meal after nightfall) and phalahara (fruit and milk only). In India in 2026 the Somavarams are 16, 23 and 30 November and 7 December.

Fasting is not a test of endurance. In the Karthika Puranam tradition, the Monday vrata is described as a way of turning the mind towards Shiva, and the texts themselves offer graded options so that everyone, from the young to the elderly, can take part. Pick the option that fits your health and your day.

The four types of Somavaram fast

TypeWhat it meansFood and waterSuits
Upavasam (full fast)No food from sunrise until after the evening puja; the strictest form, nirjala, also avoids waterWater usually allowed; nothing elseHealthy adults used to fasting
EkabhuktamOne meal in the day, traditionally at midday after pujaOne simple vegetarian meal, waterWorking people who need energy in the day
NaktamNo food by day; one meal at night after sunset and the evening deepamWater by day; one meal after darkPeople who can manage a day without food but want a proper meal
PhalaharaFruit, milk and similar light foods instead of grainsFruit, milk, curd, dry fruits, waterElders, students, anyone who cannot skip meals

The word naktam literally means "at night". In its strict form, the meal is taken after nightfall, when stars are visible; most households today simply eat after sunset once the lamp is lit and the puja is done. Ekabhuktam means "eating once". Both are described in tradition as valid Somavara vratas, and many families alternate depending on the week's work.

When to break the fast: sunset on the four Mondays

If you are keeping naktam or a full-day fast, the usual sequence is: sunset, light the lamp, offer a short puja and prayer, then eat. Here are sunset times (IST) for four cities. They are approximate to plus or minus one minute, and your local panchangam may differ slightly.

Advertisement
CityMon 16 NovMon 23 NovMon 30 NovMon 7 Dec
Hyderabad5:41 PM5:40 PM5:41 PM5:42 PM
Vijayawada5:33 PM5:33 PM5:33 PM5:35 PM
Bengaluru5:51 PM5:51 PM5:52 PM5:53 PM
Chennai5:40 PM5:40 PM5:41 PM5:43 PM

For other cities and for sunrise times (useful for the pre-dawn bath), see Karthika Masam 2026 deepam timings city-wise.

Notes for each Monday in 2026

  • 16 November: the first Somavaram, also Vrishchika Sankranti. A good week to start gently, perhaps with ekabhuktam, and see how your body responds.
  • 23 November: Vaikuntha Chaturdashi. Karthika Pournami follows on Tuesday 24 November, and many people fast on both days. If you plan two fasts in a row, choose a lighter form for at least one of them and drink enough water.
  • 30 November: a quiet Monday with no other major observance; often the easiest one to keep fully.
  • 7 December: also Masik Shivaratri, as Krishna Chaturdashi prevails through the night (until 4:12 AM IST on Tuesday 8 December). Some devotees extend the fast into a night vigil and break it the next morning after bathing; others keep the usual Monday fast. Follow your family's custom. See Karthika Masa Shivaratri 2026.

Full dates, tithi and nakshatra for each Monday are on our Karthika Somavaram 2026 dates in India page.

What to eat and what to avoid

Rules vary by family and region, but the core is broadly shared:

  • Avoid: meat, fish, eggs, alcohol, onion and garlic. Many families avoid these for the whole of Karthika Masam, not only on Mondays.
  • Good for phalahara: bananas, apples, papaya, pomegranate, milk, curd, buttermilk, a few soaked almonds or dates, coconut water.
  • Good for the one meal: simple home-cooked vegetarian food without onion and garlic, cooked fresh, not too oily or spicy. Some households prefer tiffin-style dishes over rice on fasting days; follow your family's practice.
  • Breaking the fast: start with water or a little fruit or milk, then eat a moderate meal. A very heavy meal after a long fast often leaves people uncomfortable.

For the complete month-long food guidance, see Karthika Masam rules 2026: food, dos and don'ts.

A sample Somavaram routine

  • Before sunrise: bath (Karthika snanam), wear clean clothes, light a small lamp at the home shrine.
  • Morning: Shiva abhishekam with water or milk and bilva leaves, chanting Om Namah Shivaya. Take a sankalpa, a simple inner resolve to keep the fast for Shiva.
  • Day: go about work, drinking water as your chosen fast allows. If keeping ekabhuktam, have your single meal at midday after a short prayer.
  • Sunset: light the deepam at the door, by the tulasi and at the shrine. Visit a Shiva temple if you can.
  • Evening: read or listen to the Somavara vrata katha, offer naivedyam, then break the fast.
  • Night: a light, early dinner and an early night, ready for the next morning's bath.

Two well-known mantras for the day are the Panchakshari, Om Namah Shivaya ("salutations to Shiva"), and the Maha Mrityunjaya mantra: Om tryambakam yajamahe sugandhim pushtivardhanam, urvarukamiva bandhanan mrityor mukshiya mamritat, meaning "We worship the three-eyed One, fragrant, who nourishes all. As the ripe cucumber is freed from its vine, may He free us from death, not from immortality." For the vrata story, see Karthika Somavaram vratham katha.

Advertisement

Who should not fast strictly

Tradition itself exempts or softens the vow for people for whom fasting may be harmful. Please do not keep a full or waterless fast, and consult your doctor before changing your eating, if you are:

  • Pregnant or breastfeeding.
  • Elderly or frail, or recovering from illness or surgery.
  • Diabetic, especially on insulin or sugar-lowering tablets.
  • Living with heart, kidney, liver or blood-pressure conditions, or with a history of eating disorders.
  • On regular medication that must be taken with food.
  • A child or teenager who is still growing.

For anyone in these groups, phalahara at normal mealtimes, or simply giving up onion, garlic and non-vegetarian food for the day, is a sincere and complete observance. Lighting the lamp and remembering Shiva are the heart of the Monday, not the hunger.

Fasting abroad

If you live outside India, break the fast by your local sunset, not by Indian times. In the USA, UK and Canada there are five Somavarams in 2026. See Karthika Somavaram rituals in the USA, the UK and Canada.

Frequently asked questions

What is the difference between ekabhuktam and naktam?

Ekabhuktam means eating a single meal in the day, traditionally around midday, and nothing else apart from water. Naktam means eating only at night: you take no food through the day and have your meal after sunset, usually after the evening lamp and puja.

Advertisement

Can I drink water during the Karthika Somavaram fast?

In most forms, yes. Only the nirjala (waterless) fast forbids water, and that form is a personal vow rather than a rule. Ekabhuktam, naktam and phalahara all allow water.

What time should I break the Somavaram fast?

Those keeping naktam or a full-day fast usually break it after sunset and the evening deepam. On Monday 16 November 2026, sunset is about 5:41 PM in Hyderabad, 5:33 PM in Vijayawada, 5:51 PM in Bengaluru and 5:40 PM in Chennai (IST, approximate to plus or minus one minute).

Can diabetics keep the Karthika Somavaram fast?

Please speak to your doctor first. People with diabetes, especially on insulin or tablets that lower blood sugar, can become unwell when meals are skipped. A gentler form, such as fruit at regular times or a simple vegetarian meal without onion and garlic, still honours the day.

Is it compulsory to fast on all four Mondays?

No. Many people fast on all four, others on one or two, and some on none and simply perform abhishekam and light a lamp. Tradition values sincerity over severity.

Which foods are avoided on Karthika Somavaram?

Commonly avoided are meat, fish, eggs, alcohol, onion and garlic, and many families avoid these for the whole month. Some households follow longer lists according to family custom.

Editor's note

Editor's note (9 October 2026): This guide has been restored at its original address. Dates are from Drik Panchang; city sunset times are in IST and approximate to plus or minus one minute, and local panchangams may differ slightly. The fasting forms described are traditional practices; this page is not medical advice, and anyone with a health condition should consult a doctor before fasting.