As said, Blood Purification is the first, basic, and best solution for 97.4% of any diseases in human body. Thetran kottai is the foremost and powerful medicine in siddha for blood purification. Thetran kottai is dried and processed in a traditional Siddha process. It is processed carefully that it does not lose its powerful medicinal properties. As the final result is given in the form of a coffee.