Shah was admitted at the Care Institute of Medical Science (CIMS) on Friday with high fever and is being treated for pulmonary viral infection, hospital sources said today.
However, the BJP leaders's health has improved significantly this morning, the sources said.
Shah, who is also the BJP's general secretary and in-charge of the party's UP unit, had high fever for the past few days, after which he was advised medical treatment, his family sources told PTI.