How do people in INDIA do their hair?

How often did they wash it and did they use shampoo or conditoner or what?? and what products did they put in it and how did they take care of it and everything??? im like talking about older india like anchienct india because people in india always have really good hair so their ancestors must have taked pretty good care of theirs for it to be soo good looking now. since the most best type of fake hair is indian remy hair