The first is the Kudipraveshikam, which is carried out in utmost diligence, with strict rules and diet, under the expert guidance of able physicians. The Kudipraveshikam is also called as Kayakalpam. The major treatments will be carried out inside a specially built hut (Kudi) surrounded by walls that shut off wind and light. A patient entering the Kudi, comes out after the prescribed course of treatment, hale and healthy. Duration: Kudipraveshikam is a 50 to 120 days treatment procedure (including indoor & outdoor). The person intending to undergo the Kudipraveshika treatments must have:A strong and positive mind free from sex, anger etc.A purpose for undergoing kudi-praveshika treatments.A disease-free body.Confidence in the scope of this treatment and the ability of the physician.Ability to afford the cost of treatments. The Kudipraveshika can be done for both male and female patients, and can be done effectively from age 25 to 70. If the person is affected by a serious disease, the Kudipraveshika treatments can start only after the disease is completely cured. The medicines (rasayana) for the kudipraveshika will be decided by the physician according to the condition of the patient's health.