Our Indian Rishis were familiar with subject of astrology & numerology before the dawn of civilization in this world. They had explained each and every number by connecting them with a specific planet. That system of numerology came back to India with western tricks about a hundred years ago because the traits of those countries are clearly visible in the present system of numerology. Though the disputed western system with its 'friend - indifferent - inimical' table of the numbers does not apply today, but it is still used. If according to the astrologers a planet is friendly in different or inimical to a particular planet, how it can behave differently in the field of numerology. Therefore, according to astrological norms even numerology should be used for different purposes.