India, Aug. 10 -- Data plays a very important role for understanding our world, physical, biological, social, economic as well as ourselves. Availability of data usually reduces uncertainly and ambiguity in our understanding. Our dependence on data for clearer understanding and decision making increased with the scientific as well as industrial revolutions. With increased trust on data, seven hundred years ago, the world's data growth curve started becoming more vertical and five hundred years ago modern statistics, mostly related to population data, started to inform the policy and even reform the society. Nearly seventy years ago, computers started to transform our ability to encode, store, analyse and later even share data. Around thirty years ago, internet started to contribute to create a flood of data. Broadband networks, Mobile devices, streaming media, and IoT on one hand, and trends like urbanization, e-governance, e-commerce, online learning, e-health, open government data, etc. on the other, are now rapidly transforming this flood into an overwhelming deluge....