The Delhi government has entered a six‑month collaboration with IIT Madras to study whether photocatalytic “smog‑eating” coatings on roads, pavements, and other city infrastructure can meaningfully reduce key air pollutants such as nitrogen dioxide (NO₂) and volatile organic compounds (VOCs). The project, led by Professor Somnath C Roy of IIT Madras, will begin with lab‑based smog simulations followed by field trials in Delhi, aiming to assess whether such coatings can become a scalable, science‑driven tool in the Capital’s fight against air pollution.