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A Hindu devotee perfoms rituals in a natural hot spring as the sun rises near the banks of the Sutlej River as part of the Hindu festival of Makar Sankranti at Tattapani, India, Jan. 14.
Hindu devotees celelebrate Makar Sankranti to mark the end of the harvesting season and the transition of winter into spring.
According to the BBC:
Makar Sankranti is one of the most important festivals of the Hindu calendar and celebrates the sun's journey into the northern hemisphere, a period which is considered to be highly auspicious.
There is a wide variation in the celebration of Makar Sankranti thoughout India, in particular the name.
Read more from the BBC: Makar Sankranati