Though Manu is reported to have sprung from Vivaswan,Surya,Sun, and recorded as first Human, Offspring of Saptha Rishis are shown as progenitors of Human race.For example Daksha.Saptha Rishis change for each Manvantara.
Based on research,it transpires that people do live in towns inside Mount Sastha.
One of the explorers,who had been going there often was missing!
His reports are available.
And the Texts quoted from Pranav’s Veda seem to be more on Vaasthu,that is rules of architecture.
The Pranava Veda texts also speak of Temple construction.
Vedas do not speak of Temple Worship nor do they mention public Worship.
Iswara Pranidhana concept was introduced by Patanjali in his
The Puranas mention Tamirabarani,as one of the landmasses of Bharatavarsha.
TThe Puranas mention Tamraparna/Tamraparni interchangeably as one of nine divisions of Bharatavarsha
Five Elements Temples, (Panchabootha Sthalas),
Pancha Peeta Sthalas,
Pancha linga Sthalas,
Shakti Peeta Sthalas,
Pancha Asana Sthalas(Five Seats) Tri(three)Sthalas