The National Green Tribunal, NGT today took state governments to task for not taking a clear stand on pollution and vehicle density in major cities in their jurisdiction. NGT directed them to submit information by tomorrow failing which bailable warrants will be issued against chief secretaries.<br/><br/>The green panel directed Maharashtra, Uttar Pradesh, Bihar, Tamil Nadu, Andhra Pradesh, Punjab, West Bengal to apprise it about cities which have worst ambient air quality.Also total number of vehicles along with their bifurcation (diesel/petrol) and the total population in each city.<br/><br/>The tribunal also slammed Central Pollution Control Board (CPCB) for submitting half-baked data on the population and vehicle density in major cities across the country.<br/>The tribunal also directed Delhi RTO to appear before it and inform it about the total number of vehicles in the national capital along with their break-up.<br/><br/>.