INTRODUCTION
Information and knowledge are the driving factors in the development of society. The human is the most intelligent among all categories of the living world. It gathers the information and converts it into knowledge and further uses it to improve the Living standard of the people. The need and desire are the two motivating factors for acquiring knowledge since the inception of the society. Initially, the knowledge used to be preserved and transferred through oral traditions. When the volume of knowledge grew, people invented the mechanism of recording them through writings. The organised set of such records is called documents. The society continued to develop and accordingly the volume of knowledge grew. Due to such developments, different civilizations emerged.