Valmiki Ramayana’s evidence points to 12209 BCE as the year of Rama-Ravana Yuddha. However, researchers are still uncertain about the exact location of Ravana’s Lanka. What could be the cause of this confusion and is there evidence to resolve this uncertainty? Nilesh Oak discusses evidence of the last 14000+ years from Valmiki Ramayana, Mahabharata, Geography, Oceanography & Astronomy.