I was born in Delhi and like all Delhities, I am concerned about the direct daily impact that pollution has on our lives. While handkerchiefs and anti-pollution masks on the road have become a common sight, air purifiers at homes are a new phenomenon. On the 26th of March what I saw, left me shaken. I along with Shirin Bithal, an air pollution researcher with Centre for Science and Environment, recorded real time exposure at India Gate at 8:21 am. It showed a staggering 803 mg/cubic meter of PM 2.5 as compared to the WHO prescribed limit of a per day average of 25 mg/cubic meter. Between 8.00 and 8.55 am on the same day the Delhi Pollution Control Committee (DPCC) reported 200-mg/cubic meter. The discrepancy is because we measured it at ground level, which is where we are while DPCC monitors are placed at the top of building tops. The particulate level since 2002 has increased by a dramatic 75 per cent. Delhi is choking and there are enough facts to prove it.