India, Nov. 1 -- Delhi's atmosphere in the winter months, when pollution levels are highest and necessitate interventions, is climatologically unsuitable for "consistent" and "effective" cloud seeding, the Indian Institute of Technology (IIT), Delhi, said in a study on Friday.

It said the exercise was not feasible, citing a lack of sufficient moisture and saturation during peak winter, particularly in December and January, unless there is impetus from a western disturbance. Even then, viable "windows of opportunity" are rare and confined to specific anomalous events, the report said.

"There is a fundamental lack of sufficient moisture and saturation during the peak pollution months... coinciding precisely when intervention is most neede...