An ancient observatory is found at the State’s first astro-archaeological site in Sivaganga. This points to a highly learned group called Tamil Arivargal which had resided in the region. This group, which finds a mention in Tholkaappiyam, was well versed in astronomy, tracking not only the movement of the sun and the moon but also of the stars
Tamil Nadu’s own Stonehenge left to rot with its potential for research
