Article 121 of the Articles of Association of Tata Sons, the holding company of the Tata group, covers decisions of its board. They “shall require the affirmative vote of a majority of the Directors appointed pursuant to Article 104B present at the meeting.” Those directors are nominated by the Tata Trusts, which own about two thirds of Tata Sons.
According to the Supreme Court, “Articles 104B and 121 were introduced through a new version of Articles of Association” at the annual general meeting of September 13, 2000.