You are wrong in one aspect sir. The Millions of Gods and Goddesses were always Indian. The migrant Aryans did not worship Gods and Goddesses when they came to India. Initially, thier method of worship consisted of chanting Shlokas and doing havan and hom. Worshipping before Icons is an entirely Indian practise which was later on adopted by the migrant Aryans. The unfortunate thing is that after adopting the Indian practise of worshipping before Gods and Goddesses, they took over the Indian temples and threw away the native Indians out of their own temples. That does not make the Gods and Goddesses un Indian. It is simply the power of the faith in Lord Shiva and Maata Parvathi that the migrant Aryans could not resist and themselves adopted the religion.