Well, ancient South India is indeed full of riddles (some of which will probably never be solved), but there is good research going on about it. e.g. a recent v

Well, ancient South India is indeed full of riddles (some of which will probably never be solved), but there is good research going on about it. e.g. a recent very interesting study: http://www.ejvs.laurasianacademy.com/SouthernRec.pdf http://www.ejvs.laurasianacademy.com/SouthernRec.pdf (PDF) and a lot of work on the Sangam age by the Institut Francais De Pondichery(http://www.ifpindia.org/-Indology-.html http://www.ifpindia.org/-Indology-.html).