Karthika Masam — the 8th month of the Hindu lunar calendar — is widely considered the holiest month of the year, sacred to both Lord Shiva and Lord Vishnu. The month begins on Karthika Shuddha Pratipada (the day after Diwali Amavasya) and concludes on Karthika Pournami (the full moon). Daily evening deepam (lighting of oil lamps) at home, in temples and in rivers transforms India into what tradition calls 'the festival of lights extended for a full month.' Mondays (Karthika Somavaram) are especially auspicious for Shiva worship; the full moon (Karthika Pournami) is the most powerful day of the year for ganga-snan, deepam-floating, and viewing the Jwala Toranam at Srisailam. HinduTone's Karthika Masam hub covers the full monthly vratham: daily deepam protocol (when to light, what oil to use, what mantras to chant, where to place), the 5-day Karthika Vratham observed by serious devotees, the four Karthika Somavarams (Shiva-special Mondays) with their fasting and abhishekam protocols, Karthika Pournami's special rituals (Jwala Toranam darshan at Srisailam, Karthika Deepa Utsavam at Tiruvannamalai), the vana bhojanam (forest picnic) tradition where families dine under amla/usiri trees, and the Tulsi-Vivaha kicking off the auspicious wedding season. We also cover Karthika Masam in the diaspora — how NRI Hindu families maintain the daily deepam tradition in apartments and condos abroad, where the major US/UK/Australia temples host Karthika events, and the diaspora-specific adaptations (LED diyas where flame regulations restrict open lamps, weekend Karthika Vratham observances accommodating work schedules).
























Karthika Masam in the Amavasyanta calendar (most South Indian states) runs from around 20 October to 18 November 2026 — beginning the day after Diwali (Karthika Pratipada) and ending on Karthika Pournami. In the Purnimanta calendar (most North Indian states) it runs Sharad Purnima to Karthika Purnima (Oct 6 to Nov 4 in 2026).
Every evening at sunset (or Pradosh Kaal) light a ghee or sesame-oil deepam (one to several) at the home shrine, threshold, and tulasi tree. Chant Karthika Deepam Mantra or Om Namah Shivaya / Om Namo Narayanaya 11–108 times. The deepam should burn through the evening; the merit accumulates daily through the month.
The full moon of Karthika is the day Lord Shiva slew Tripurasura (the three-cities asura) and the day Karttikeya was anointed commander of the deva armies. It is considered the most spiritually charged full moon of the year. River bathing, deepam floating, Vishnu Sahasranama parayanam, and visiting Shiva temples on this day are said to grant moksha-level benefit.
A Karthika Masam tradition where extended family groups picnic under amla (usiri) trees on a Sunday or auspicious day in the month, eating prasadam meals together and reciting Vishnu/Shiva mantras. The amla tree is considered the form of Lord Vishnu; eating under it is said to confer the merit of countless yajnas.
Yes — the simple version: daily evening deepam, one-meal-a-day satvik fast on Mondays, Vishnu Sahasranama or Sri Suktam parayanam, no onion/garlic for the month. The advanced version adds nirjala fasts on Ekadashis, Pradosh Kaal abhishekam, and a complete Karthika Mahatmya parayanam. Choose based on capacity.