Gandush literally means filling of mouth with water etc fluids to the extent that there is no room for the movement of fluids in it. One should sit calmly in nivaat (devoid of excess air) sthan in mild sunlight. After gently massaging shoulders and neck, one should proceed for gandush dharan. Mouth should be uplifted a bit in order to avoid entry of fluids into the throat.
Gandush should be held till oral cavity is full of Kapha, Nose and eyes starts watering.
After that Forehead, neck, cheeks should be gently massaged.
Gandush dharan should be repeated for 3,5 or 7 times.
There are 4 types of Gandush-Thus, Gandush dharan is useful for overall maintenance of oral hygiene.