Sankranti is the Sanskrit word in Indian Astrology which refers to the transmigration of the Sun from one Rāshi (sign of the zodiac) to another. Hence there are 12 such sankrantis in all. However, the Sankranti festival usually refers to Makara Sankranti or the transition of the Sun from Dhanu rashi (Sagittarius) to Makara rashi (Capricorn).
Considering the winter solstice marks the beginning of the gradual increase of the duration of the day. Scientifically, the shortest day of the year is around December 21–22 after which the days begin to get longer, hence actual Winter Solstice begins on December 21 or December 22 when the tropical sun enters Makara rashi. Hence actual Uttarayana is December 21. This was the actual date of Makara Sankranti too. But because of the Earth's tilt of 23.45 degrees and sliding of equinoxes, Ayanamsa occurs. This has caused Makara Sankranti to slide further over the ages. A thousand years ago, Makara Sankranti was on December 31 and is now on January 14. Five thousand years later, it shall be by the end of February, while in 9,000 years it shall come in June.
While the traditional Indian Calendar is based on lunar positions, Sankranti is a solar event. So while dates of all Hindu festivals keep changing as per the Gregorian calendar, the date of Makara Sankranti remains constant over a long term, 14 January. Makara Sankranti is celebrated in the Hindu calendar month of Magha.
According to the Puranas, on this day Surya(Sun) visits the house of his son Shani(Saturn), who is the lord of the Makara rashi(Zodiac Capricorn). Though the father and son duo did not get along well, the Surya made it a point to meet his son on this day. He, in fact, comes to his son’s house, for a month. This day thus symbolizes the importance of the special relationship between father and son.
Makar Sankranti, apart from a harvest festival is also regarded as the beginning of an auspicious phase in Indian culture. It is said as the 'holy phase of transition'. It marks the end of an inauspicious phase which according to the Hindu calendar begins around mid-December. It is believed that any auspicious and sacred ritual can be sanctified in any Hindu family, this day onwards. Scientifically, this day marks the beginning of warmer and longer days compared to the nights. In other words, Sankranti marks the termination of winter season and beginning of a new harvest or spring season.
In India it is known by different regional names
Makar Sankranti or Sankranti - Andhra Pradesh, Bihar, Goa, Jharkhand, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Manipur, Orissa, Sikkim, Uttar Pradesh, Uttaranchal and West Bengal.
Uttarayan- Gujarat and Rajasthan
Maghi - Haryana, Himachal Pradesh and Punjab
Pongal - Tamil Nadu
Magh Bihu or Bhogali Bihu - Assam Valley
Shishur Saenkraat - Kashmir Valley
Makara Vilakku Festival - Sabarimala Temple (Kerala)
Sankranthi In Karnataka
This is the Suggi or harvest festival for farmers of Kaveri basin of Karnataka. On this auspicious day, young females (kids & teenagers) wear new clothes to visit near and dear ones with a Sankranti offering in a plate, and exchange the same with other families. This ritual is called "Ellu Birodhu."Here the plate would normally contain "Ellu" (white sesame seeds) mixed with fried groundnuts, neatly cut dry coconut & fine cut bella (Jaggery). The mixture is called "Ellu-Bella" (ಎಳ್ಳು ಬೆಲ್ಲ). The plate will also contain sugar candy molds of various shapes (Sakkare Acchu, ಸಕ್ಕರೆ ಅಚ್ಚ್ಹು) with a piece of sugarcane. There is a saying in Kannada "ellu bella thindu olle maathadi" which translates to 'eat the mixture of sesame seeds and jaggery and speak only good.' This festival signifies the harvest of the season, since sugarcane is predominant in these parts.
In some parts of Karnataka, a newly married woman is required to give away bananas for a period of five years to married women (muthaidhe) from the first year of her marriage, but increase the number of bananas in multiples of five. There is also a tradition of some households giving away red berries "Yalchi Kai" along with the above. In North Karnataka, kite flying with community members is also a tradition. Drawing rangolI in groups is another popular event among women during Sankranti.
An important ritual is display of cows and cattle in colorful costumes in an open field. Cows are decorated for the occasion and taken on a procession. They are also made to cross a pyre. This ritual is common in rural Karnataka and is called "Kichchu Haisodhu
Wish you all a happy Sankranti