According to the Companies Act, what is the minimum number of directors required in a public company?

Section 149. Company to have Board of Directors: (1) Every company shall have a Board of Directors consisting of individuals as  directors and shall have: (a) a minimum number of three directors in the case of a public company, two directors in the case of a private company , and one director in the case of a One Person Company; and (b) a maximum of fifteen directors:Provided that a company may appoint more than fifteen directors after passing a special resolution:Provided Further that such class or classes of companies as may be prescribed, shall have at least one woman director.