MUMBAI: Reallocating oxygen for medical purposes to take care of the rising Covid-19 cases will have an adverse impact on small businesses in some sectors, domestic rating agency Crisil said on Wednesday. It said the "hiccup" seems temporary for now, and it is unlikely to impact the credit quality of the affected businesses. The impact will be greater for companies in Maharashtra, New Delhi, Rajasthan, Madhya Pradesh and Gujarat, where medical oxygen demand has increased multiple times due to high Covid-19 caseloads, the agency added. The central government has barred industrial use of oxygen except in nine designated sectors from Thursday onwards to divert the available stocks for life-saving medicinal use.