The process of instillation of medicines through nasal cavity is known as Nasya Karma. It is the unique process of Shodhana Chikitsa in which medicines reach to the brain and eject the vitiated Dosha responsible for producing the diseases. Every Shodhana procedure of Panchakarma is simple, easy and very much beneficial if done with its proper & complete knowledge. Complications (Vyapada) may be arise if not go through proper method as mentioned in scripts. Nasya Karma is one of the important Panchakarma it is short, but complicated procedure if not go through proper way. Similarly knowledge of patient regarding Nasya Arha-Anarha is essential. So Panchakarma physician should have to know each and everything about Nasya if he wants proper benefit of Nasya.