Dr. P. D. Ravi Prasad Ph.D., having an Doctor of Philosophy in the Subject of Mechanical Engineering from UGC recognized University and B.Tech and M.Tech in Mechanical Engineering and all are in regular mode. So whatever he says would have a Scientific and Mathematical base. Astrology is a mathematical Calculation and Analysis based one, and he is having full life analysis predictions 10 years and Analyzed 500+ charts in all Astrology Services.