I fully agree with your views.
In Ramayana there is mention of 4 tusk elephant , seen by Hanuman during his Lanka exploits,The question is how could there be a mention of the elephants with four tusks unless Valmiki and the people of his era were familiar with such creatures? A quick search on the Encarta Encyclopedia will let us know that these four-tusked elephants were known as Mastodontoidea, which are said to have evolved around 38 million years ago and became extinct about 15 million years ago ( quote )
Basically the ancient Indian history is distorted due to various reasons during the British rule and it still continues. Unless we Indians come out of the British Influence we can never know the true history of India.