According to Oxford Dictionary "The study of the supposed influence of star and planets on human being is Astrology". Indian Astrology is a Divine science of cosmic effect on animate and inanimate objects of this earth. Question is why astrology, What is its need when everything is well planned by Almighty. First of all we should know what is the purpose of Astrology in day-today life.Todays all the happenings of our lives is well planned by the creator of this Universe. Our pleasure and pain, gain or loss, Health or Wealth, sorrow and happiness, high and low, poverty and richness, birth and death, luxury and scarcity--these all make the confluence of this evolutionary life. Why is there so much inequality in every ones life? Inequality in the life of each person of the society promoted astrology to grow to find the proper answer. No other Science and Technology available could give a proper answer to this question. Do not we see in our life "A supremely intelligent person who had been scoring top marks in his school period, is forced by circumstances to serve under who is extremely dull-witted. The intelligent person earns a meager income for himself and carries out the order of dull-witted. A young Girl with no grace or charm get married to a good husband, but her neighbour who is very beautiful and rich with all the required qualifications for marriage continues to be on the waiting list or have rough husband. A person with very meager income is blessed with enough children to form a cricket team, while a very well-to-do neighbour with best in health has no child. A rich land lord secures tone of rice, but is unable to take a bowl of cooked rice as he suffers from diabetes. He curses his fate. He who runs a group of Hotels, caters delicious food of all varieties to his customers, but he himself can not consume even a bit of it since he suffers from blood pressure or colic pain. Thus it is observed that every person has his own share of trial and tribulation of life.