Correct Answer: By a single transferrable vote

Solution : The correct answer is By a single transferable vote

Article 54 of the Indian Constitution outlines the procedure for electing the President, known as the Electoral College of the President. To choose a president, one transferable vote or proportional representation are acceptable methods. All the elected representatives to the Lok Sabha, Rajya Sabha and state and Union Territory legislatures that hold assemblies are contesting this election.