Ganesh Chaturthi
History & Mythology
One day, Parvati wished to bathe without interruption, so she fashioned a figure from the turmeric paste on her skin and breathed life into him, asking this new son to guard the door. When Shiva arrived home, the boy—not knowing who Shiva was—blocked his entry. An enraged Shiva ordered his ganas to subdue the boy, but they were defeated. Shiva himself then severed the child's head in his anger.
Parvati's grief was enormous. To restore him, Shiva sent his attendants northward with instructions to return with the head of the first sleeping creature they found facing north. They found a one-tusked elephant. Its head was brought back and Shiva placed it on the child's shoulders, breathing new life into him. Shiva declared this son—Ganesha—to be the leader (Isha) of all his ganas, and decreed that no worship, no undertaking of any kind, would succeed without first invoking Ganesha.
The 10-day public festival was dramatically revived by freedom fighter Bal Gangadhar Tilak in Pune in 1893—transforming a private household puja into a massive public gathering to forge national unity against British colonial rule. The tradition spread from Maharashtra across all of India, and today Ganesh Chaturthi processions are among the largest public gatherings in the world.
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.