Dear Seshadri, nobody can predit a future event accurately and I have not come acorss anybody like that. If there was anybody who could have predicted the devasting earth quakes (Lathur, Kutch, etc or recent Tsunami in South India) a lot of lives could have been saved.
Also nobody can speak a language they have not learnt. I can speak six languages, but I don't think I can ever speak a language I have not learnt. These are all hoaxes and were exposed by Rationalists like Dr. A.T. Kovoor.
