That's the size of the workforce dedicated to a business that's thrived for the past three decades on a growth model of labour arbitrage. In the process, it's matured into a industry worth almost $150 billion. The multi-billion dollar question today is, where does it go from here, as it comes head to head with a series of challenges. Consider: New Bills being introduced by the Trump administration in the US Congress seek to make outsourcing not only tougher but more expensive. This comes at a time when protectionist sentiments that call for onsite hiring of locals are spreading globally. All this, even as traditional IT services are moving towards the digital economy.