A study on indexing extends to a wide arena of the process of publication, citation, information retrieval, information storage, and knowledge management as a whole. The following research is inspired by the culture & practice of valuing knowledge in India. The study has been done on the backdrop of the evidence that historians provide about the rich knowledge and advancements that India contained during ancient times. Invasions and colonializations have, to a great extent been an impetus in its loss along with the passage of time and generations. The study here has been a product of extensive reading, analysis, and research into ancient knowledge and its management systems. The findings and observations have been presented in the order of the eras in Indian history. The evidence collected from the first-hand sources adds more value to the observations.