DTE tried hard to get updated data on the total sector-wise emissions in various Indian cities from the CPCB. Unfortunately, our efforts turned out to be futile as the CPCB pollution inventory is far from being updated. For Delhi, such data are available for 1993-94 but the situation is even worse in Calcutta and Mumbai, where data exists for 1985 and 1992-93 respectively. Hoping that CPCB will one day get its act together and update its pollution inventory, we are forced to report the outdated data.
In Delhi, data for 1993-94 show that vehicles are the major cause for air pollution