Vermilion being applied to a devotee on the banks of Ganga River during Chhath Puja festival, in Kolkata. Chhath Puja honors the Sun God and Chhathi Maiya

Devotees worship the setting sun during Chhath Puja, at the River Brahmaputra Ghat in Guwahati, it is celebrated six days after Diwali and lasts four days

Devotees during Chhath Puja festival, at the Ganga Ghat in Patna. Offering prayers to the sun as it sets and rises is a key ritual

Devotees worship the setting sun giving aragh during Chhath Puja, at the Mirganj ghat in Nepal. Chhath is mostly celebrated in Bihar, Jharkhand, Uttar Pradesh, and Nepal

Devotees worship the setting sun during Chhath Puja, at Laxman Mela Ground on the banks of the River Gomti in Lucknow

Uttar Pradesh Chief Minister Yogi Adityanath performs ritual during Chhath Puja, at Laxman Mela Ground on the banks of the River Gomti in Lucknow

Devotees perform ritual during Chhath Puja, in Kolkata

Devotees worship the setting sun during Chhath Puja, at the Ganga Ghat in Kolkata. Chhath is mostly celebrated in Bihar, Jharkhand, Uttar Pradesh, and Nepal

A Nepalese woman offers prayers to the setting sun on the bank of Bagmati River during the Chhath Puja festival in Kathmandu

A Nepalese woman offers prayers to the setting sun on the bank of Bagmati River