In 5 yrs, Bengal to ban 35k vehicles over 15 yrs old
kolkata the bengal transport department is set to ban more than 35000 vehicles — all 15 years old — from plying in kolkata and howrah in the next five years the move is crucial for cleaning up the ambient air since the transport department study revealed that older vehicles are more polluting than newer ones that comply with superior emission norms in 2008 calcutta high court order.