Ayush Kadha Recipe for COVID-19: Ministry of Ayush advised drinking decoction effectively to increase immunity. What are the benefits of drinking kadha? It is a conventional Indian drink, which is effective against seasonal flu, cough, and cold. Ayush recommended Kadha is made using Indian herbs and spices. It is regarded as a natural immunity booster, which benefits in the ailments of fever and sore throat. Check the step-by-step guide on how to make Ayush Kadha for COVID-19 at home.