Companies Act, 1956
Sec 252 - Minimum number of directors.
(1) Every public company (other than a public company which has become such by virtue of Section 43A), shall have at least three directors.
Provided that a public company having, -
(a) a paid-up capital of five crore rupees or more;
(b) one thousand or more small shareholders, may have a director elected by such small shareholders in the manner as may be prescribed.
Explanation : For the purposes of this sub-section "small shareholders" means a shareholder holding shares of nominal value of twenty thousand rupees or less in a public company to which this section applies.
(2) Every other company shall have at least two directors.
(3) The directors of a company collectively are referred to in this Act as the "Board of directors" or "Board".