Mr.Sai You have given a very elaborative description of the history which we all also know. Gandhi is called the Mahatma of India but, he had more faults than qualities. Still we are forced to believe that Gandhi was Mahatma and Godse was a demon.
There is absolutely no need to take reference from Dravidian and Aryan history to justify the statements made by Advani. Advani just did what a average person does when he is in hostile neighbour's house, being offered all kind of hospitalities. But, Advani forgot that he has to return home after all and face the family members. I believe what he said was all out of his brain. He said all this just to appease the Pakistanis without considering the repercussions.
For you and alikes, one thing is very important to remember and that is "stop repenting the history when Aryans were settled in the North". What harm did Aryans did to you except normal skirmishes. They fused their religion, culture and traditions with that of Dravidian's. This beautiful fusion is what is known as Hinduism. Just think, what had been the fate of indigenous people here if they would have faced the muslim invasions, which were actually faced by Hindus (Aryans)