Rama Misra handed over the reins of Nathamuni's school to him, including the collected Naalayira Divya Prabandham, and offered him the epithet of Yamunacharya.
The transfer of leadership from Rama Misra to Nathamuni included the handover of his school, as well as the comprehensive collection of Naalayira Divya Prabandham, and Nathamuni was subsequently honored with the title of Yamunacharya.