I spent January researching and writing a 12,000-word report on India for Building magazine’s White Paper series. One of the world’s fastest-growing economies, India appears unstoppable. While foreign investors continue to flock to its Special Economic Zones, domestic demand from its 1.2 billion citizens is more than sufficient to maintain GDP growth well above the global average. But to live up to its potential, the Indian government knows it must invest billions of dollars on every aspect of its infrastructure – under the Five Year Plan just finishing, it spent $500bn, and it has set out a further $1trn of projects in the next. This feature, published in Building the same week, offers a snapshot of what’s going on.