Charaksamhita is the oldest and authentic document in medical science (Ayurveda). Its creator is Maharishi Charaka who is called the father of living medicine. Charaksamhita is in Sanskrit language. Charaksamhita was written even before the second century. It is divided into eight parts named 'places' (eg, nidhanpasthan). Each 'place' has several chapters with a total number of 120. It deals with the (then) principles related to the human body, etiology, symptoms and treatment of many diseases. In Charak Samhita, there is a detailed discussion about food, hygiene, measures to avoid diseases, medical education, Vaidya, diet and patients. Charak used to say- "The more important thing is to prevent disease rather than cure."

Ashtangahridayam is a famous book of Ayurveda. Its author is Vagbhata. It was written / its creation period is estimated from 500 BCE to 250 BCE. This book includes both medical and surgical information. Charaka, Sushruta and Vagbhata are collectively called 'Vrhatatrayi'. There are 6 sections, 120 chapters and a total of 7120 sutras& 8 Angas(Ashtangas)in the Ashtangahridayam Maharishi Vagbhata was the great sage of Ayurveda, who lived his entire life on Vedic principles, worked for the expansion of Ayurveda, did a lot of research, tested them and found out what was true and wrote it in two texts simple words. There are two texts written by him- 'Ashtangahridayam' and 'Ashtangasangraha' in which Maharishi Vagbhata explained how a body won't fall ill.

The first and best treatment method is Cow and belongs to the cow dynasty ( Ox & Bull). Cow's Panchgavya means cow's Milk, Curd, Ghee, Cow Urine and Cow Dung, which have properties to cure many diseases. The cow-treatment is described in the Vedas with a very pure vision. Vedas are the oldest books of the world. Ayurveda is also a branch of the Vedas. No ceremony is celebrated without cow. She (Cow) has been given the place of mother. Actually we can call Gaumata (Cow) a moving hospital full of medicines. She gives the perfect nutrient in the form of milk; she acts as a purifier purifying the environment and air as she continues to release pranavayu (oxygen). So in every family the cow must remain or preserved. If seen from the point of view of wealth, then one Cow in its lifespan is worth millions of rupees and other preventive diseases.