Professor M R Raghava Varier gave an interesting talk on Tharisappally Copper Plates and its re-reading by him and Professor Kesavan Veluthat. The video of the speech can be accessed here:
https://www.youtube.com/watch?v=9VhQk_U7C3o&feature=youtu.be
Those interested in more details of the recent research being conducted by De Montfort University U K ( referred to by Professor Varier in his speech) may please see the web site : http://849ce.org.uk/