Kasa is one of the disease mentioned in Pranavaha Srotovikara. Vataja Kasa is one among the 5 types of Kasa where Shushka Kasa is a prominent symptom. Prana and Udana Vayu are responsible for normal functioning of Pranavahasrotas which can be altered due to causative factors like Raja and Dhuma. When Adhogati of Vata is obstructed by Dushta Doshas it attains the Urdwa Gati and takes Sthanasamshraya in Urapradesha and produces Kasa. 

         Incidence of Kasa has been increased due to continuous exposure of the respiratory system to the external environment affected by pollutants, allergens, smoke, dust, air pollution, occupational risks, industrialization and population explosion with an influence of modern life style. The prevalence of cough was found to be between 2.4 to 5.6 percent in the rural areas and 1.7 to 5.4 percent in urban areas in different centers of India.

       Vataja Kasa presents with symptoms like Shushka Kasa, Hruth-Parshva-Shirashula,Ura-Kanta-Vaktra-Shushkata, Swarabheda, and Dourbalya .Based on similar signs and symptoms Vataja Kasa can be compared with ‘’Simple Pulmonary Eosinophilia.’’It is the most common form of Eosinophilic lung disease. Simple Pulmonary Eosinophilia affects males and females in equal number. It is characterized by chest pain, dry cough which may be associated with little amount of sputum, paroxysmal cough, headache, feeble voice and general weakness.

       Management of non productive respiratory condition include antitussive alone or in combination of anti histamines, decongestants which have their own limitation and side effects. In classics Nidana Parivarjana, Shodana, Shamana, Rasayana with special importance for the use of Vata Anulomana Aushadi Prayoga in the management of Vataja Kasa has been explained.

      Shrungyadi Churna  is mentioned in Gadanigraha and Sitopaladi Churna is mentioned in Charaka Samhita, Chikitsa Sthana, Rajayakshma Chikitsa. Shrungyadi Churna contains Karkataka Shrungi, Vacha, Katphala, Katruna, Musta, Abhaya , Dhanyaka, Bringaraja, Devadaru, and Hingu. All are having Katu, Tikta, Kashaya Rasa, Laghu Ruksha Guna and Ushna Veerya acts as Vata Kaphahara, Deepana, Pachana, Vata Anulomana and Kasahara. Sitopaladi Churna contains Sitopala, Vamshalochana, Pippali, Ela, Twak. Among them Sitopala and Vamshalochana are having Madhura Rasa, Laghu Snigdha Guna and Sheeta Veerya which helps in Vata-Pitta Shamana. Pippali, Ela, Twak are having Katu Rasa, Laghu Ruksha Guna, Ushna Veerya acts as Vata Kaphahara and Vata Anulomana.

            Considering above points present study will be aimed to evaluate and compare the efficacy of Shrungyadi Churna and Sitopaladi Churna in Vataja Kasa with special reference to Simple Pulmonary Eosinophilia.