The question asks about a specific technology implemented by the Delhi government in collaboration with the Indian Institute of Technology, Kanpur, in October 2025 to address air pollution.
Cloud seeding is a weather modification technique that aims to improve precipitation (like rain or snow) by dispersing substances into the air that serve as cloud condensation nuclei.
Considering the options, cloud seeding directly relates to a method that can potentially mitigate air pollution by influencing weather patterns to cleanse the air. The other options, while related to pollution control, do not fit the specific description of technology aimed at reducing pollution through atmospheric manipulation in the same manner as cloud seeding.