India has long been simultaneously a country of enormous wealth and desperate poverty. In recent decades, the distance has only grown between those who enjoy living standards comparable to the finest in the world, and the millions left far behind. Even as Indians crowd the lists of the world’s richest dollar billionaires, an estimated 200 million people sleep hungry. Half our children are malnourished and nearly a fifth severely so....

It’s a silent epidemic that we’ve never been able to put a finger on. In debates on food security, the issues of hunger and malnutrition have always been add-ons. But for millions, getting the next meal is the difference between life and death. Four-year-old Akash Sahariya can barely stand up. His bleached hair, distended belly and matchstick arms are harbingers of certain death that awaits him. He is the fourth...