Sri Caitanya Mahaprabhu appeared in the land of Bharata-varsa, specifically in Bengal, in the district of Nadia, where Navadvipa is situated. It is therefore to be concluded, as stated by Srila Bhaktivinoda Thakura, that within this universe this earth is the best planet and that on this planet the land of Bharata-varsa is the best; in the land of Bharatavarsa, Bengal is still better, in Bengal the district of Nadia is still better, and in Nadia the best place is Navadvipa because Sri Caitanya Mahaprabhu appeared there to inaugurate the performance of the sacrifice of chanting the Hare Krsna maha-mantra. The sastras recommend:

krsna-varnam tvisakrsnam
sangopangastra-parsadam
yajnaih sankirtana-prayair
yajanti hi sumedhasah
[SB 11.5.32]

Lord Sri Caitanya Mahaprabhu is always accompanied by His very confidential associates such as Sri Nityananda, Sri Gadadhara and Sri Advaita and by many devotees like Srivasa. They are always engaged in chanting the name of the Lord and are always describing Lord Krsna. Therefore this is the best among all the places in the universe. The Krsna consciousness movement has established its center in Mayapur, the birthsite of Lord Sri Caitanya Mahaprabhu, to give men the great opportunity to go there and perform a constant festival of sankirtana-yajna, as recommended herein (yajnesa-makha mahotsavah), and to distribute prasada to millions of hungry people hankering for spiritual emancipation. This is the mission of the Krsna consciousness movement. Caitanya-bhagavata confirms this as follows: “One should not desire to be elevated even to a place in the heavenly planetary systems if it has no propaganda to expand the glories of the Supreme Personality of Godhead, no trace of Vaisnavas, pure devotees of the Lord, and no festivals for spreading Krsna consciousness. It would be better to live perpetually cramped within the airtight bag of a mother’s womb, where one can at least remember the lotus feet of the Lord, than to live in a place where there is no opportunity to remember His lotus feet. I pray not to be allowed to take birth in such a condemned place.” Similarly, in Caitanya-caritamrta, Krsnadasa Kaviraja Gosvami says that since Sri Caitanya Mahaprabhu is the inaugurator of the sankirtana movement, anyone who performs sankirtana to please the Lord is very, very glorious.

From Srila Prabhupada’s purport to SB 5.19.24