To elect the President of India, which one of the following election procedures is used?

In India, there are two methods of elections which are territorial representation and system of proportional representation. Proportional representation is further divided into single transferable vote system and list system. Under this system, all sections of people get representation in proportion to their number i.e., even the smallest section of the population get its share of representation in the legislature. The proportional representation by single transferable vote system is adopted for the election of President, Vice- President, and members to the Rajya Sabha.