In the North Makar Sankranti is called Lohri. Lohri is the time after which the biting cold of the winters begins to taper off.
 

On this day children go from door to door to collect funds for community bonfires which are lit up in the evening. Lohri is more of a community festival as people gather around the bonfires and offer sweets, crisp rice and popcorn to the flames.  An extremely auspicious day, Lohri marks the sun's entry in to the 'Makar Rashi' (northern hemisphere). The period, beginning from 14 January lasting till 14 July, is known as Uttarayan. It is also the last day of the month of Maargazhi, the ninth month of the lunar calendar. The Bhagawad Gita deems it an extremely sacred and auspicious time, when Lord Krishna manifests himself most tangibly. And so, across India, people celebrate the month and the prodigious harvest it brings - Pongal in Tamil Nadu, Bihu in Assam, Bhogi in Andhra Pradesh and the Sankranti in Karnataka, Bihar and Uttar Pradesh. .