Old Sanskrit texts, right from Brahma and Skanda Purana onwards, contain prescription about the observance of twelve festivals in the temple of Jagannatha throughout the year. These twelve festivals, popularly called 'dvadasa yatras'.
This famous festival is observed on the second day of the bright fortnight of the month of Asadha. Three huge chariots (cars) are constructed for the purpose. The deities of Shree Balabhadra, Devi Subhadra, Shree Jagannatha and Shree Sudarsana are seated in these chariots.
On the 6th day of the bright fortnight of Margasira, Prabharana Sasthi rituals are observed in the temple of Shree Jagannatha. The deities wear winter garments. After the deities are offered 'ghodas' and silken clothes on the Ratnasinghashan, six pieces of gold ornaments are also given.
This is celebrated in the month of Pausa. After alati and abakash on Makar Sankranti, the deities are offered 'Phuta paharana' (a kind of cloth). The 'Makara Chula' is offered at Trimundi. Then follow 'Mala lagi besha' and Karpura lagi.
Dola Yatra is one of the important festivals of Shreemandira and is celebrated from the 10th day of the bright fortnight to Phalguna up to the full moon day.On completing this ritual, the deities are placed on the swing. Then the arrangement is done for public 'darshan' on the "Dolabedi".
Akshaya Trutiya is an important festival of Shreemandira. The Chandan Yatra starts from Akshya Tritiya i.e. the 3rd day of the bright fortnight of Baisakha. From this day onwards construction of the chariots for the Ratha Yatra starts.
Celebrated on the 8th day of the bright fortnight of Baisakha 108 pots of consecrated water are offered to the deities and some special rites known as 'Abhisheka ritual' is performed on this day.