India, Oct. 23 -- T he day after Diwali, Delhi's skies wore their usual grey coat of smog: AQI soaring to a choking 451. But amid the gloom, a few patches of green are beginning to grow. Across the city, nurseries are giving away free saplings, urging residents to fight pollution one plant at a time. From South to West Delhi, nurseries are quietly fueling a green counter-revolution. The idea is simple: if the air is toxic, plant your way out of it. "We've realised Delhi can't depend on purifiers alone," says Ashok from a nursery near Sarai Kale Khan, which has begun distributing free saplings through the 'Dilli Free Tree' drive. Ashok shares, "Anyone can register online and collect up to 100 saplings, and we're already seeing over 300 sign-ups this month." At another nursery in West Delhi, Manoj Jain points to rows of green: "Aloe Vera, Sansevieria, Hibiscus, Neem - all grown in polybags so people can carry them easily. During cutting season, we even provide ready plants." Even horticulturists are encouraging Delhiites to bring the forest home. "NASA research shows plants like Sansevieria and Chlorophytum act as natural air purifiers," explains Avneesh Banswal of Rashtrapati Bhavan, adding, "They absorb toxins and release fresh oxygen, so even a few pots in your balcony can make a real difference." Environmentalist Dhirender Sharma from Delhi Greens adds: "Trees are Nature's own air filters. The more green corners we create, at home, in colonies, along roads, the cleaner and calmer the city becomes."...