Ketu is the most fundamental planet that act as a carrier of gene.Generally the most fundamental planet of gene is Deoxyribonucleic acid ,which contains a special genetic code that is responsible for transmission of behaviours from one generation to the next and the planet that is responsible in astrology is Ketu.In astroscience if in any natives natal chart the planet Ketu is debilitated or if it is aspected by the electromagnetic waves of bad planets then he/she may suffer from genetic abnormal behaviour.If it is good or exalted in horoscope then it can lead the person to the epitome of success.Generally Ketu can produce very good results if it is placed in Scorpio or Sagittarius moon sign.Scorpio is the most ideal place of Ketu and the following Nakshatra is ruled by Ketu-Ashwini ranges from 0-00′–13D 20’in Aries sign,Magha 0-00′–13D20′ in Leo sign and Moola 0-00′–13D20′ Sagittarius sign.
In Vedic astrology to altar ketu’s harmful effect -Cats eye is used because it is the gem that can generate infrared ray radiation(extention -from nominal red edge of visible spectrum 700 nanometers to 1 millimeter) which is responsible to altar genetic pattern of individual or native.But proper judgement of natal chart is necessary it is because there are different types of Cat’s Eye gem and the functions are different.For example suppose Jupiter and Ketu is placed in Scorpio ascendant then Golden Cat’s Eye can produce most beneficial results.If there is good combination of Mercury and Ketu then Green Cat’s Eye is used and can produce most benefic result to the native.In this way the prediction differs from one natal chart of a person to the natal chart of another person.
From my point of view I have seen that providing or charging positive planets in horoscope can produce most beneficial results to the native than charging negative planets in horoscope.
FROM VEDIC PERSPECTIVE-
Quantum sound of Lord Ganapati is used to altar Ketu’s harmful radiation in human body.The beej sound (Gong) is used in most cases.For example-one can chant (OM GONG GANAPATAYEI NAMAH) 108 times daily to get favourable results because in this sound the (Mooladhar Chakra) that is located at the base of the spine is activated in a tremendous manner and it acts as a shield around the natives body by changing the biomagnetic wave and protect the native from any kind of negativity -may be -from enemies,witchcraft,sudden secret mishap,unforeseen difficulties or secret conspiracies.
The following lines of Navagraha Strotam is also very effective (PALALADHUMA SANKASHANG TARAGRAHABEEMARDAKAM–RAUDRAM RAUDRATMAKAM KROORANG TOUNG KETUM PRANAMAMYAHAM).It is beneficial for persons who are engaged in astronomy,astrology,or mathematics as it increases the wisdom,power of discrimination,knowledge of the self and psychic abilities to the native.
—————————-HARI OM TATSAT————————