New Delhi, Nov. 27 -- The National Green Tribunal-appointed amicus curiae Sanjay Upadhyay has raised urgent concerns over the worsening air pollution in the National Capital Region (NCR), stating in a November 6 affidavit to the tribunal that despite the Graded Response Action Plan (Grap) being in force, the air quality has not improved and emergency interventions such as cloud seeding have delivered no measurable results. Upadhyay on November 19 also flagged discrepancies in pollution data, including instances of water being sprinkled near air monitoring stations, and suggested that the tribunal may question the Delhi government for its expenditure on cloud seeding and state pollution control boards for anomalies across multiple states. "T...