Raja Pandian, your ancestors were probably rulers of Tamil Nadu. You may be of the opinion that maybe Tamil Nadu should have not joined the Indian Union. And ultimately you may be right. I think people in general do not like being ruled by others, this is true throughout history and human beings genes have not changed. I can agree that maybe North Indian muslims first and then the British/South Indian brahmin combine later on may have ruled over Tamils to their dislike.
I am North Indian Brahmin, and I am sure something similar has happened in North, and history is never forgotten. The saying by Mahatma Gandhi goes, an eye for an eye and a tooth for a tooth makes the whole world blind and toothless. So, I think we should all stop fighting and make our own independent futures in separate countries without thinking over ruling over others. We should aim to have friendly relations as neighboring countries though. One can never keep together by force what is frractured. No glue will really work.