Switzerland as a whole is beautiful. The purpose of most Indian travelers is to experience the scenic beauty of Switzerland and it exists everywhere. There are lakes, snow capped mountains, glaciers, scenic routes, cities / towns / villages.
To see these things you can visit some or all the places, however during a 05-Days holiday most Indians visit Zurich (One of the most liveable cities in the world), Lucerne (One of the most visited place in Switzerland), and the beautiful serene town of Interlaken (A small town with a view of Jungfraujoch).