

Quick Reference Card
| Date | Kartik Shukla Shashthi (November 13-16, 2026; primary Chhath: November 15) |
| Duration | Four days |
| Observance | Religious/Seasonal/Agricultural |
| Celebrated in | Eastern Nepal (Madhesh, Bagmati, Gandaki), Bihar and Uttar Pradesh in India |
| Observing Communities | Madhesi, Tharu, Bihar and eastern Hindu communities |
| Type of Event | Solar Worship and Fertility Festival |
| Purpose of Event | Worship of Surya Dev (Sun God) and Chhathi Maiya (goddess of fertility) through the most austere 36-hour fast in the Hindu calendar |
| Holiday Status | Regional public holiday in Nepal's Madhesh Province |
| First Observed in | Ancient period; documented in Ramayana and Mahabharata |
Quick Fact: Chhath Parva features the most rigorous fasting practice in the Hindu calendar — a 36-hour "nirjala vrat" (fast without food or water) observed by devotees, mostly women, who stand waist-deep in rivers for hours at dawn and dusk offering argha (sacred offerings in bamboo baskets) to the rising and setting sun. The word "Chhath" means sixth in both Sanskrit and Hindi, referring to the sixth lunar day (Shashthi) of Kartik when the festival reaches its peak.

Chhath Parva is one of the most ancient and spiritually austere festivals in the Hindu tradition, celebrated primarily in Nepal's Madhesh Province and the Indian states of Bihar and Uttar Pradesh. This four-day festival dedicated to Surya Dev (the Sun God) and Chhathi Maiya (the goddess of fertility and motherhood) is unique for combining extraordinary devotion with nature worship through rituals performed at rivers and water bodies at both sunrise and sunset. Chhath Parva is far more than a festival — it is a testament to the depth of human devotion and the recognition of the sun's indispensable role in sustaining all life on earth.
History and Background
Chhath Parva is mentioned in two of Hinduism's greatest epics. In the Ramayana, Goddess Sita observed Chhath vrata seeking Surya Dev's blessings for motherhood and was blessed with sons. In the Mahabharata, Draupadi and Karna are both associated with Chhath observances. According to tradition, Karna — son of Surya Dev — would stand in water and offer prayers to his divine father, a practice that became foundational to Chhath observance. The festival's roots extend to the Vedic period's Surya worship traditions, where the sun was recognized as the most visible manifestation of divine creative and sustaining power. Chhath has been continuously observed for thousands of years in the regions bordering Nepal's Terai and India's Bihar, representing one of the oldest surviving Hindu religious practices. Its primary day falls on the sixth lunar day (Shashthi) of Kartik's bright fortnight, when the sun stands at a particularly auspicious celestial position.
Purpose of Chhath Parva
This festival is mainly observed to:
Worship Surya Dev as the ultimate giver of life, health, energy, and prosperity to all living beings.
Celebrate Chhathi Maiya as the divine protector of fertility, children, and motherhood.
Perform the 36-hour nirjala vrat for spiritual purification and cosmic alignment of body and spirit.
Seek blessings for family health, prosperity, longevity, and protection from illness.
Honor ancient agricultural and seasonal traditions connecting human life to solar rhythms.
How is Chhath Parva Observed?
Chhath Parva unfolds over four distinct days of sacred observance:
Day 1 (Nahay-Khay): Ritual cleansing bath, preparation of pure food (lauka bhat — bottle gourd rice), and the commencement of dietary purity.
Day 2 (Kharna/Lohanda): Day-long fast broken only at evening with kheer (rice pudding) and rotis prepared in earthen pots; prasad distributed to family and neighbors.
Day 3 (Sandhya Arghya — main Chhath evening): 36-hour nirjala fast begins; devotees go to riverbanks in festive dress, offer bamboo baskets (sculi/daura) filled with fruits, sugarcane, and thekua sweets to the setting sun while standing in water.
Day 4 (Usha Arghya — final morning): Before dawn, devotees return to riverbanks, offer argha to the rising sun, and the fast is ceremoniously broken with prasad.
Throughout the festival, devotional Chhath songs (called Chhathi ke geet) fill the air along riverbanks, creating an atmosphere of extraordinary communal devotion.
Importance of Chhath Parva
Chhath Parva is important for several reasons:
It represents the most austere fasting practice in the Hindu calendar — a demonstration of extraordinary devotion and physical discipline.
It celebrates the sun's essential and irreplaceable role in sustaining all life on earth — a recognition of humanity's fundamental dependency on solar energy.
It is one of the few major Hindu festivals where worship is performed without the mediation of priests, emphasizing direct personal connection with the divine.
It celebrates Chhathi Maiya as the divine protector of children and the embodiment of maternal love and fertility.
It represents the cultural identity and pride of Madhesi and Bihari communities both in Nepal and India — a festival that defines their spiritual heritage.
Conclusion
Chhath Parva is among the most visually stunning and spiritually powerful festivals in all of South Asia. As tens of thousands of devotees wade into rivers at dusk and dawn, raising bamboo baskets filled with sacred offerings toward the sun, they participate in an act of devotion so ancient and so pure that it transcends the boundaries of time, place, and religion — a living testament to the human spirit's capacity for reverence and gratitude toward the source of all life.