Manasa, Vacha, Karmana are called as Trikaranamulu. These three words are Sanskrit words. In Telugu these three words called as Manasa (Manasu), Vacha (Vaakku) and Karmana (Pani).
Manasa refers to the mind
Vacha refers to the speech
Karmana refers to actions.
These three words are used to describe a state of consistency expected of an individual.