Uttarayani Yatra is a special ritual observed on Makar Sankranti in Puri Jagannath Temple. In 2018, Uttarayani Yatra date is January 14.
It is observed on the day when Sun moves towards Vernal Equinox. As per Hindu calendar, it falls on the day of Makar Sankranti, when Sun moves towards Makara Rashi (Capricorn).
In Puri Temple, on Uttarani Yatra day, Makara Chaula, a special rice dish is offered to the deities. This Makara Chaula is then taken around Sri Mandir in a procession which is called as Makara Bedha.