Kasthuri Manjal also called as Wild Turmeric in English is the most important grass plant in Indian Culture. It is having lot of medicinal, spiritual values in our Indian Culture. Its roots are collected, cut into pieces, dried well, and available as raw material for you. 

Disclaimer: Before taking any herbal as an intake, you are requested to consult with a Siddha or Ayurveda Doctor or any other Traditional Siddha Physician to avoid further health related problems. They will help you to understand the procedure, the effect of other herbs and foods to avoid if any, upon consuming the herbs.