Hello @bestofindia: To build a map in a GIS (Geographic Information Systems) software, you need, on the one hand, the shape file, which will be represented in points, lines or polygons depending on the entity that is going to be georeferenced (in this case polygons). You also need to configure the coordinate system according to the geographical area you are mapping the world, and to that, you must add the database to the shapefield. It can be built manually, or in a spreadsheet like excel, and then linked.

It has its complexity at the beginning, if you want, I can help.