गोब्राब जाथायफोराव, बेनिअनगायै हागादैनि बांद्राय सेमजिनाया, बैयाव सनदेरनाय आरो संफ्ल’ सेवलांनाय दं।
In chronic cases, besides excessive production of bronchial mucus, there is infection and lung destruction.