The Central Pollution Control Board (CPCB) on Wednesday, 14th November, 2012 released the noise and air pollution data results in its annual press release just the next day after Diwali. The findings of the monitoring attributed the bursting of less noisy crackers for the declining trend in noise levels in Delhi vis-à-vis last year. Bangalore. Kolkata and Hyderabad also registered similar trends while no such trend was observed in Mumbai. Air pollution on the other hand was found to have increased during this year’s diwali vis-à-vis previous year’s. CPCB has held adverse meteorological conditions (lesser average temperatures, decreased night time mixing height, low wind speed, and increased humidity as compared to previous year) and bursting of the less noisy crackers as the reasons for the same.