South Indian System of Numerology clearly demarcates the systems and traditions and beliefs that are passed on to the contemporary populace. Though Numerology and numerological divination are regarded as pseudo mathematics or pseudoscience by modern scientist; once they were instrumental in delineating the charactorial flaws and the ways of progress for the betterment of an individual.

The penumbra of Tamil numerology, like other numerology systems (Chaldean, Pythagorean, etc) started its journey as a means by which it cultivated to highlight the nooks and corners of an individuals future, discover personality attributes, analyze the vibrational qualities of baby names, read the harmonic patterns of planets and their relationships with each other (astrology), thereby trying to make sense of the fabric of "reality" that one surrounds one selves. Through research, observation and documentation, numerologists have laboured to gain a better understanding of the universe and one`s place in it.

As per the practitioners of Numerology, it is the Science of Numbers. The etymology of Numerology states that it is derived from Latin word "numerus," which implies `number`, and the Greek word "logos," that connotes `word, thought, and expression`. The study and practice of Numerology influences every aspect of life as it foretells the outline of one`s future by unveiling the deeper nature and potentiality of a person and other prospects of life. Numerology predicts human destiny in addition to an in-depth understanding of planetary attributes, including the mythology of the planets, their presiding deities, their movements in the sky and the suggested pujas to work favourably with planetary energies.

Indian Vedic Numerology, numbers are used as a key to understand human behaviour and are an easy way to learn the method that exercises the mind`s intuitive faculty to fathom the depths of the human personality and its subsequent destiny. The method of Numerology incorporates the linking of microcosm with the macrocosm. It has been said that Indian Vedic Numerology is based on the vibratory resonance of each number and with conscientious observation of numbers a proper respect for the accuracy and power of numbers and their energies can be developed. In accordance with the history of Numerology in India, Vedic Numerology is a sacred study as it enables one to look deeply into the wheel of karma and adjust the attitude and behaviour in the world.

The history of Numerology defines that Vedic Numerology subscribes to the belief that the soul chooses to manifest in an individual`s life expression by their birth data and the name vibration to evolve further in consciousness. The numbers define the psychological profile, the `ahamkara` (ego) and the karmic residue, in terms of the strength and weaknesses people are born with and will learn and refine through in this lifetime. The vibrational forces have a very distinct quality for each planet on human destiny. The practice of Numerology involves the number from one to nine, the seven luminaries, plus Rahu and Ketu, the nodes of the moon. In South India, mostly Tamil Nadu, the numbers assigned to English alphabets is strikingly different. The list is shown below:

1 = A, I, J, Q, Y
2 = B, K, R
3 = C, G, L, S
4 = D, M, T
5 = E, H, N, X
6 = U, V, W
7 = O, Z
8 = F, P

There is no assignment for the number 9. Numerologists analyze double-digit numbers from 10 to 99. Ex: Number 29 is supposed to be the worst numbered-name a person can have.