Chaturdhamurti

1.  Jagannath is worshipped as the Purushottama form of Vishnu
2. Balabhadra considered the elder brother of Jagannath is sometimes identified with and worshipped as Shiva. 
3. Subhadra now considered Jagannath's sister has also been considered as a deity who used to be Brahma.
4. Finally the fourth deity, Sudarshana Chakra symbolizes the wheel of the sun's chariot, a syncretic absorption of the Saura (Surya-centric) tradition of Hinduism. 

The conglomerate of Jagannath, Balabhadra, Subhadra, and Sudarshana Chakra worshipped together on a common platform are called the Chaturdhamurti or the "four-fold form".

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The Deities, Lord Jagannath, Balabhadra, Subhadra and Chakra Sudarshan are made of margosa wood. When one lunar month of Ashadha is followed by another lunar month of Aashadha, the deities change their bodies during such a leap month. This is known as Navakalebar or New Body Ceremony. On such occasions, Puri witnesses the largest crowd in her fold.

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