Lethal smog is back in the world’s most polluted capital. Residents have had enough

By Esha Mitra and Aishwarya S Iyer, CNN New Delhi (CNN) — It’s easy to tell when it’s smog season in New Delhi; the air gets darker, heavier and starts scratching the throats and testing the lungs of the city’s 34 million residents. Pollution been an issue for so long in the Indian capital that