In Ayurveda various formulations are mentioned to cure various diseases. But it is observed that if the seeds of one plant are planted in the various parts of the world, the quality and chemical composition of the fruit varies, because of the soil and climatic conditions. From our research we identified the soil and climatic conditions for the plants, from where we can derive the maximum desired medicinal values from the plant.

There is an incident of RAMAYANA, when Meghnad fired his Vajra on Lakshman, he become unconscious. Thereafter Vaidya Dhanvantri advised Lord Ram that if Sanjeevani Buti, found in Himalaya, can be made available before sunrise, then Lakshman can survive. Form this incidence we started researching that why Lakshman can survive if the Sanjeevani Buti is given to him before sunrise and why the Sanjeevani Buti will not work after sunrise. It is well known that the respiratory system of the plant is opposite in the day and night period. During the day (Sunrise to Sunset) the plant releases Oxygen and consumes Carbon Dioxide, whereas during the night period (Sunset to Sunrise) the same plant releases Carbon Dioxide and consumes Oxygen. From our research we found that the chemical compositions of the plant also changes from daytime to nighttime. We evaluated that the chemical composition of which part of plant is useful for our purpose, if harvested during daytime or otherwise at nighttime.