The correct answer is Proportional Representation and the Single Transferable Vote System.Election of President of India:The election is held in accordance with the system of proportional representation by means of the single transferable vote and the voting is by secret ballot.The President is elected not directly by the people but by members of the electoral college consisting of:The elected members of both the Houses of Parliament;The elected members of the legislative assemblies of the states;The elected members of the legislative assemblies of the Union Territories of Delhi and Puducherry.Members who do not participate in the election of President:Nominated members of both Houses of Parliamentthe nominated members of the state legislative assembliesThe members (both elected and nominated) of the state legislative councils (in the case of the bicameral legislature)The nominated members of the Legislative Assemblies of Delhi and Puducherry.