Yes, I think so too. According to Plato Atlantis sank in the ocean 9000 years ago. That was almost the period Rawana lived.
It could be that those 'Nuclear Explosions' that may have happened in those days could be the cause for Atlantis sinking.
These are pictures drawn according to the description in 'The Atlantis Story' by 'Plato'
The Strange thing is, It looks like the Stargate in Sri Lanka.
This suggests that the power source is nuclear power, or something we don't know yet.
Oh! and I once read an article saying there is evidence of a Nuclear Explosion in Horton Place, Sri Lanka, which predates known civilization.
We don't know exactly when Rawana lived. But historical and archaeological facts suggests it was between 5000 BC to 10000 BC, which is older than any known civilization on earth.
Does anyone know where to find a Sinhala translated version of this book?
Because it could be mistranslated when translating from Sanskrutha to English.