Interestingly i got a journal paper (what else am i going to talk about??!!), discussing exacly on this topic ( way to go Gokul!). I'll send the paper through mail. Also, i will scan the pages and put them in a website by today evening and let u guys know the web address . This is not one of the 7 papers that i sent earlier :). It has the negative of a stone carving which is clearly readable and i am very happy to note that it talks about Ishwagu vamsam.