Siddha Bakula is the bhajana kutir of Haridasa Thakur, the place where he chanted 3,00,000 names of Krishna daily.
Sri Chaitanya requested Haridasa, "Remain here and chant the Hare Krishna maha-mantra. I shall personally come here to meet you daily. Remain here peacefully, and look at the cakra on top of Lord Jagannath's temple and offerobeisances. As far as your prasadam, I shall arrage to have that sent here."
In order to provide shade for Thakur Haridasa, Sri Chaitanya planted a used tooth stick of Lord Jagannath. All of a sudden it grew up and appeared as a great shade tree. Rupa Gosvami recited Lalitha Madhava and Vidagdha Madhava under this tree before Sri Gauranga and his followers. During his stay Sanatana Gosvami lived with Haridasa Thukur here. Haridasa Thakur left his body here and Lord Chaitanya danced in esctasy here.
In course of time, in order to construct Lord Jagannath's Rathayatra cart, the then Gajapati Maharaja ordered his officers to cut down the tree here. The next morning the royal offiers found the tree hollow and returned without cutting it. The main branch of the tree is petrified, stone to the touch. This is the part that was transformed, so the king would not take it.