Excerpt :Prof. Padmanabha Rao, former head of the Radiation Safety Group& Deputy Director, Defense Laboratory (DRDO) in Jodhpur, Rajasthan has the opinion that Ramayana has mentioned five different types of human races apart from the north Indian Aryans. They were 1. Vanaras; 2. Golanguls; 3. Rukshyas; 4. Gradhru; 5. Rakshasas. Apart from the Rakshasas other four types of human races helped Rama to built the bridge. In Europe we have the evidence that Neanderthal, who were almost human but not human, existed side by side with the human in ancient time. In ancient India too, there were several near-human races apart from the human race. The origin of the human settlement in Sri Lanka in about 1.7 million years ago corresponds to the year when according to the Purana Rama first went to Sri Lanka. The Bridge, according to NASA, was also constructed at about 1.7 million years ago.
