The waist area of the body is called Kati. Kativasti is an effective therapy in Ayurveda, the Indian system of medicine, to cure the ailments of this area, like lower back ache or stiffness or pain felt down the back.

The patient is made to lie face down on the Droni. A rectangular reservoir made of black gram dough is built on the lower back and after ensuring that it is leak proof, lukewarm medicinal oil which alleviates pain and strengthens the bone tissues is slowly poured into it.

The oil and the receptacle are kept for half an hour and after removing them, the affected area will be slightly massaged with the same oil. Then the patient is made to take rest for a while.