Tax evasion will soon be history in India – this was the headline of a WhatsApp message that I received recently. The message recounted how the tax department had built a big data application called Project Insight that has been developed over the past decade at an expense of Rs 1,000 crore. It will also keep a tab on social media posts to track your foreign travel, luxury spends, and correlate it to your declared income, and sound an alert where needed.
Project Insight will feature an integrated information management system, which will harness machine learning to help take the

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