Dev Deepawali
History & Mythology
Dev Deepawali—the Diwali of the Gods—falls fifteen days after the mortal celebration, on the full moon of Kartika. According to tradition, on this night the gods themselves descend from their heavenly abodes to the sacred city of Varanasi (Kashi), the eternal city of Shiva, to celebrate the defeat of the three demon cities called Tripura.
Three demon brothers—Tarakaksha, Vidyunmali, and Kamalaksha—obtained from Brahma three fortified cities of gold, silver, and iron that floated through the sky. After a thousand years, these three cities would align in a single line only once, and only at that single moment could they all be destroyed by a single arrow. Shiva waited. When the alignment came, the gods themselves became his chariot—Brahma the charioteer, mountains the wheels, Sun and Moon the wheel-rims, Vishnu the arrow—and Shiva fired. All three cities were reduced to ash in a single cosmic instant.
To celebrate this victory, all the gods lit lamps across the heavens. In Varanasi, where Shiva has resided since before creation itself, the 84 ghats that line miles of the Ganga are illuminated by thousands of earthen lamps placed row by row on every stone step—their flames reflecting into the sacred river below. It is considered the single most spiritually overwhelming sight in all of India.
Frequently Asked Questions
How are Hindu festival dates calculated?
Hindu festival dates are calculated using the Panchang — the Vedic almanac based on Tithi (lunar day), Nakshatra (Moon's asterism), and other astronomical factors. Most festivals fall on specific Tithis in particular lunar months. AstroJanamPatrika calculates these using Swiss Ephemeris, making dates accurate to the minute rather than relying on pre-printed almanacs.
What is Tithi in the Hindu calendar?
Tithi is the lunar day in the Hindu calendar, determined by the angular distance between the Moon and Sun in multiples of 12°. There are 30 Tithis in a lunar month — 15 in the waxing phase (Shukla Paksha) and 15 in the waning phase (Krishna Paksha). Most Hindu festivals are tied to specific Tithis, which is why their Gregorian calendar dates change each year.
Why do Hindu festival dates change every year?
Hindu festivals follow the lunisolar calendar, not the Gregorian solar calendar. Because the lunar year is about 11 days shorter than the solar year, festivals drift earlier each year — and an intercalary month (Adhika Masa) is added roughly every 2–3 years to realign the calendar with the solar year. This is why Diwali, Navratri, and other festivals fall on different Gregorian dates each year.
What is Shubh Muhurta for festival rituals?
Shubh Muhurta is the auspicious time window for performing festival rituals, determined by combining Tithi, Nakshatra, Yoga, Vara, and Choghadiya. AstroJanamPatrika calculates the precise muhurta for each festival based on local sunrise, Tithi end times, and auspicious Nakshatras.
What is Purnima and Amavasya?
Purnima is the full moon day (15th Tithi of Shukla Paksha) when Moon and Sun are 180° apart. Amavasya is the new moon day when they are conjunct. Both are highly significant in the Hindu calendar — Purnima for celebrations and Amavasya for ancestor rituals (Pitru Tarpan). Festivals like Holi, Guru Purnima, and Sharad Purnima all fall on Purnima.