Charaka Samhita is a popular Ayurvedic treatise. As the name indicates, it is a compilation of Ayurveda lessons comprising of various aspects including basic concepts (Sutra sthana), diagnosis of diseases (Nidana sthana), treatment concepts (Chikitsa sthana) etc and is written by Charaka. (Charaka Samhita means ‘treatise written by Charaka).

But actually the book is not originally written by Charaka. Acharya Charaka redacted the treatise ‘Agnivesha Tantra’ which has become popular in the name of ‘Charaka Samhita’.