Sutra neti is a nasal cleansing yoga exercise wherein the nasal area and outer respiratory regions are decongested with the help of soft thread. Initially, the soft thread is inserted through one nostril and tries to bring out through the mouth. The same process should be repeated with another nostril. After having mastery of the process, it can be inserted through one nostril and try to make it out through another nostril. But one thing should be kept in mind that it always should be practiced under the supervision of a yoga expert.