This landmass that got submerged gradully in the present day Indian ocean would have been the connecting land between africa, India and Australia.
Its fascinating to see such a landmass has been described in ancient Tamil literature as Kumarikandam or Lemuria continent by historians. Some sangam literature points out that there existed land below kanyakumari and the capital of ancinet pandyas denoted as Old Madurai existed there. This is where the first sangam of Tamil literature is said to have taken place under Lord Shiva himself. Geologically, India shrinked by around 2000 kms before reaching this size. The northern part of older India got shrunken and thrusted as Himalayas. The present northern India was the southern part of the India existed before. The sangam texts also point out this landmass got submerged forcing people to move northwards. Call you see the link?
