Sapa,you are in a dream world.How would almost everyone understand Hindi? Most of us from South don't understand the Persian,Arabic,Turkish,Urdu words that is most commonly uded in Hindi along with many obliterated Sanskrit words..Do you understand that? While many of us from South understand pure Sanskrit words better than people in the North.So what language should be our National language.
Tamil is one of the earliest language s[oken in India after people started inhabiting the subcontinent.It should also be given its due respect.
