Srila Kavi Karnapura mentions, in his second edition of Sri Caitanya Chandrodaya Natak, that the Dandabhanga pastime had taken place at Kamalapura:
ganga tado tam dinam tatthujjeba thaun
abaras sim dine siri pundaria-naano datthabbotti
guruie utkanthae jonanta-hiatta bia turiam pathido
tado kamalapuraname gaamam labhia
kia-nai sinane bhaabado debaulam
pekkhidum aggado gachhantasmi
debe nia-karat thiam debas sa dandam nichananda
detrana kim edena aandooba plabakhandena
dandenatti bhanjia nai-majsmi nikkhitto.
(2nd edition of Sri Caitanya Chandrodaya Act no. 6, Verse-25)
Translation: Ganga: As He traveled to see Lord Jagannath, Lord Caitanya stopped at a village named Kamalapura (Located on the bank of the river Bhargavi) and bathed in the nearby river.
Nityananda Deva then took the danda that had rested in Lord Caitanya’s own hand. Thinking, “Why does He need this?” He suddenly broke the danda and threw it into the middle of the river. Then also in his Sri Caitanya Sahasra Naam, we can find many different names of Lord Caitanya.
Some among them are:
caitanya krsna chaitanyo
danda dhrk nyastadandakah
We find Sri Caitanya Mahaprabhu named as the holder of the danda and also as the one who established Himself at that place in the form of His danda.