Jagannath rath yatra celebrate in july month in puri orrissa state.

Ratha Yatra is also known as Festival of Chariot. Every year Shri Jagannath’s chariots is celebrated at Puri, in Orissa. The second day, known as dwitiya, of moon’s waxing cycle (shukla pakshya) of lunar calendar’s third month (Ashadh Maas). Puri’s main temple Jagannath’s deities- Lord Jagannath, Lord Balabhadra and Goddess Subhadra with sudarshana chakra (celestial wheel), are carried out of the temple precincts in a form of a ritual procession in their respective chariots. The chariots are huge and are decorated with various colours. A large number of devotees draw the chariots to the Gundicha Temple at a distance of two miles to the North. Gundicha is King Indradyumna’s Queen.
On the way back from Gundicha Temple, these deities halt at the Mausi Maa Temple, where their aunt was abode, and get an offering of Poda Pitha. This is a special pancake type, which is the Lord’s favourite. After a stay for seven days, the deities return to their abode.
Three huge colourfully decorated chariots, which resemble the temple structures, are drawn through Puri’s streets. This festival commemorates Lord Jagannath, Balarama, and sister Subhadra’s annual journey to Gundicha Temple, their aunt’s temple, located two kilometres away from their temple. Non-Hindus and foreigners usually don’t get to enter the temple premises on usual days, but on these days, the other devotees get an opportunity to see the deities.
During the festival, millions of devotees, not only from India, but from all over the World, come to Puri to help pulling the Lords’ chariot, which is considered as a pious deed. During this huge procession, devotional songs are played on the chariots with tambourines, drums, trumpets and many more instruments. The carts are approximately 45 feet (14 metres) high. Thousands of pilgrims pull these chariots, which are newly built each year from a particular tree.
This festival is broadcasted live on several Indian and foreign television channels.
This festival has various names like Ghosa Jatra, Gundicha Jatra, Dasavatara Jatra, Navadina Jatra and many more. The ritual of Jatra, which mean a journey or travel, is very essential for Hindus to worship. In south the temple’s representative deities are popularly called as Utsava Murti and in Orissa they are known as Bije Pratima or Chalanti Pratima. The Jatra takes place in two forms- One involves short circumbulation that has to be around the temple and other involves a journey longer from the location of the temple to another destination. Jatras are considered very important and sacred for every festival and ceremony. Jagannatha Rath Yatra is one of the most unique and grandest festivals compared to other Jatras.
Famous Oriya songs are sung during the festival which says that the wheels, the grand avenue and the chariots become one on this occasion with Lord Jagannatha. People wait for the Jatra for the whole year in order to get just one glimpse of Lord Jagannatha.