Jewish copper plates of Cochin, also known as Cochin plates of Bhaskara Ravi-varman, is a royal charter issued by the Chera Perumal king of Kerala, south India to Joseph Rabban, a Jewish merchant magnate of Kodungallur. The charter shows the status and importance of the Jewish colony in Kodungallur (Cranganore) near Cochin on the Malabar Coast.

Cheraman Perumal dynasty, also known as the Perumal dynasty of Kerala, or Chera Perumals of Makotai, were a ruling dynasty in present-day Kerala, South India. Mahodayapuram, or Makotai, the seat of the Cheraman Perumals, is identified with present-day Kodungallur in central Kerala. Initially, their influence appeared limited to the area between present-day Quilon and Quilandy, but later extended to up to Chandragiri river in north Kerala and to Nagercoil in the south.