The Delhi government's first-of-its-kind study to determine pollution sources in the national capital has been halted unilaterally on the orders of Delhi Pollution Control Committee Chairman (DPCC) Ashwani Kumar, alleged city Environment Minister Gopal Rai on Wednesday, reported news agency PTI.

In a press conference, Gopal Rai said the Delhi Cabinet had approved the study proposal in July 2021 and signed an MoU with IIT Kanpur in October 2022, reported PTI.