There are quite a number of theories that undermine the History of India by interpolating in the Indian texts,Misinterpreting them deliberately, as Max Mueller had done,honest misinterpretations and deliberate falsehood .
1.Sanatana Dharma dates to 5000 BC.
2.Vedas are non sensical sound bytes.
3.The Puranas and the Ithihasas are pure fantasy.
4.Aryans entered from Khyber Pass, invaded India and enriched it.
5.Dravida Desa, the South of India were peopled by barbarians.
6.The south indians called Dravidians were constantly engaged at war with the Aryans of the North.
7.The Arynas were a superior race.
8.The Sanatana Dharma was resisted and in fact the southerners fought against them, especially the Tamils.
9.Hindus were primitive and did not have any basic idea of Science.
10.Denying the existence of great Indian Kings and where it is not possible, assigning them later dates in History.
All these are falsehoods to undermine Hinduism and I have posted articles on each of them.