CC Madhya 1.151
loka-bhaye rātre prabhu āilā kuliyā-grāma
For five consecutive days all the people gathered to see the Lord, and still there was no rest. Out of fear of the crowd, Lord Caitanya Mahāprabhu left at night and went to the town of Kuliyā [present-day Navadvīpa].
If one considers the statements of the Caitanya-bhāgavata along with the description by Locana dāsa Ṭhākura, it is clear that present-day Navadvīpa was formerly known as Kuliyā-grāma. While at Kuliyā-grāma, Śrī Caitanya Mahāprabhu bestowed His favor upon Devānanda Paṇḍita and delivered Gopāla Cāpala and many others who had previously committed offenses at His lotus feet. At that time, to go from Vidyānagara to Kuliyā-grāma one had to cross a branch of the Ganges. All of those old places still exist. Cināḍāṅgā was formerly situated in Kuliyā-grāma, which is now known as Kolera Gañja.