Makar Sankranti is an Indian harvest festival celebrated on January 14th, marking the sun’s transition into the zodiac sign of Capricorn (Makar). It signifies the end of winter and the start of longer days, and is celebrated with traditions like kite flying, taking holy dips in rivers, and making sweets from sesame and jaggery. The festival is celebrated under different names across India, such as Pongal in Tamil Nadu and Uttarayan in Gujarat.