LUCKNOW, Oct. 30 -- A day after IIT-Kanpur conducted two cloud seeding trials in Delhi, the institute said that data collected from 15 air quality monitoring stations it specially set up across Delhi for its cloud seeding experiment showed a reduction of about 6-10% in PM2.5 and PM10 levels following the trial.

Appearing unfazed by criticism over the lack of rain, IIT-Kanpur director Prof Manindra Agarwal said that "very useful information" was obtained in the trials that will help in future attempts.

"We had set up 15 stations in different parts of Delhi to measure pollution levels and moisture. Our data shows a reduction of about 6-10% in particulate matter concentrations," said IIT Kanpur director Prof Manindra Agarwal. "It was our f...