Manufacturing in China comes to 40% of a more than $12 trillion GDP. That’s why some call it the world’s factory. South of the border in India, the business process management sector earned $30 billion in revenues in fiscal 2016-2017 and ranked as the largest industry of its type worldwide, news website BGR India says. It’s on track to reach at least $50 billion in revenues by 2025. No wonder India’s dubbed the world’s back office.