Mr. Hamsa Prasad, M.Tch,MBA,(astro-numerology) is an engineer and manufacturer of Geopathic Stress Machines. He has developed a portable scanner, which has a great utility in detection of various ailments, (which may be already developed or under development in a human body) Gemstones compatibility detection, Aura correction and various corrections in the field of spiritual vaastu co-relating to geo-magnetic radiations for attaining precision and accuracy.