Kati in common means waist, loin and described as that part of the body which falls below the abdomen and back. Terms like 'nivasa" and; achadana‘ are also holding good to denote basti. Therefore on the basis of etimological derivation of both Kati & Basti it could be an apt term indicative of specific therapy.In Ayurveda the probable mode of drug action can be explained on the basis of so many theories viz. Rasa-panchaka theory, Pancha-bhautik theory, Doshik theory and Dhatu nirman theory. But one common factor is divulged from all these theories that the drug having pharmaco-therapeutic property, similar to the qualities of a particular dosha, provoke/vitiate that particular dosha, and the drug having pharmaco-therapeutic properties, which are opposite to the particular dosha, result in pacification of that particular dosha. Taila itself being the principle pacifier of vata when processed with other such dravyas having pharmacotherapeutic properties opposite to the qualities of vata becomes more potent vata pacifier, so normalizes the vitiated vata hence alleviate pain.