India has nearly 1.2 billion people, the European Union almost 0.5 billion.
India has 28 states and 7 territories, the EU has 27 member states.
India has two official languages and more than twenty other official languages at state level. The European Union has 23 official languages.
India has a federal, secular and democratic constitution. The European Union has not.
What do we mean by first world and third world?