Use diyas (earthen pots) with pure ghee for lighting the house. In case, this is not possible, linseed and mustard oils can be used.
When placing the diyas on the parapet and the boundary walls, ensure that they are in multiples of four, as each diya represents the reigning deity of Diwali – Goddess Lakshmi, Lord Ganesh, Lord Kuber and Lord Indra – you would not want to separate them!
