Jhulan Mandap, as the name suggests it is the stage where the divine swing is hanged on a special occasion for Lord Madan Mohan, the representative idol of Sri Jagannatha. This Stage is known as Jhulana Mandap.
You may have read about the attack on Sri Somanath Mandir in history classes. In 1025 AD, Mohammed Ghori raided and attacked this temple 17 times in the western region of India....
On this holy day, Sri Jagannatha emerges from the Rathna Singhasana with his brother Lord Balabhadra, sister Subhadra, and allies Lord Sudarshana, Sridevi, Bhudevi, and Madana Mohana to take a direct bath, called the holy Snana Yatra.
The Mukti mandap is the highest Pundit’s body in Sri Jagannatha temple, Puri. Learned Brahmins from the 18 sashana villages (previously 16) around Puri have their permanent seats on the Mukti mandap and the Shankaracharya of Puri Govardhana Pitha is the head of this august assembly of learned Brahmins.