Acharya Charaka has described Lekhan as Karma and its therapeutic utility for the first time. He has used lekhan
term for different things. a) Lekhaniya mahakashya, b)as a property of tikta rasa and ,c) as a shastra karma. Lekhaniya
mahakashaya is doing lekhan of excessive fat(reducing excessive fat) due to its ushna,tikshna, lekhan(penetrating hot properties
). So it is useful in obesity as well as hyperlipidaemia. Lekhaniya mahakashaya significantly reduces weight, BMI. Santarpana
janya vikara as explained in ayurvedic classics produces Medo-dushti , which is root causes of many diseases.Administration of
lekhaniya mahakashaya which is Tikta-Katu in Rasa(bitter taste),Ushna Veerya (Hot in potency), Laghu and Ruksha (light and
dry qualities)Katu Vipaka and is thus Vata Kaphahara. These all properties are against Medo dhatu which helps to reduce fat in
body. Lekhaniya mahakashya Is beneficial in reducing total cholesterol level,LDL levels, VLDL levels.
