Srila Kaviraja Goswami writes (Chaitanya Charitamrta-lila Adi
11:37.) that Kaliya Krishna Dasa Thakura was one of the principle
devotees of Nityananda Prabhu. He knew nothing other than the lotus
feet of Sri Nityananda Prabhu.
According to Srila Kavi Karnapura's Gaura-Ganodesha-Dipika (text
132.), he was one of the 12 gopals in Vrindavana, and in the
pastimes of Krishna in Vrindavana was known as Labhanga, one of
Krishna's cowherd boy friends. Here he is refered to as Kalah
Krsnadasa or Kalakrsnadasa.
On the twelfth day of the dark moon in the month of Caitra, Sri
Kaliya Krishna Dasa Thakura disappeared from this world. This is
not the same Kaliya Krishna dasa who accompanied Sri Caitanya
Mahaprabhu to South India. At present, Kaliya Krishnadas's
descendents live in different holy places in Bengal.