Through which Constitutional Amendment was sub-clause (1A) added to Article 75, stating that the total number of Ministers, including the Prime Minister, shall not exceed 15% of the total number of members of the House of the People?

Explanation

The question asks about the specific Constitutional Amendment that introduced a limit on the size of the Council of Ministers. This limit is defined in sub-clause (1A) of Article 75 of the Indian Constitution, capping the total number of ministers (including the Prime Minister) at 15% of the total members of the House of the People (Lok Sabha).