Makar Sankranti is a Hindu festival celebrated in almost all parts of India, Nepal and Bangladesh in many cultural forms. It is a harvest festival that falls on the Magh month of the Nepali calendar (Hindu Solar Calendar). Makar Sankranti marks the transition of the sun into the zodiacal sign of Makara (Capricorn) on its celestial path. The day is also believed to mark the arrival of spring in India and the Magh month in Nepal and is a traditional event. Makara Sankranthi is a solar event making it one of the few Hindu festivals which fall on the same date in the Nepali calendar every year: 14 January, with some exceptions when the festival is celebrated on 15 January. Makar Sankranti is observed at the beginning of the Capricorn period under the sidereal zodiac, either 14 or 15 January, and signifies the arrival of the summer season.