Yogima Seth Sharma & Swaraj Baggonkar / New Delhi/ Mumbai March 31, 2010, 1:03 IST

As India seeks to catch up with European automobile emission regulations, with the introduction of Bharat Stage-IV (BS-IV) norms, the most stringent till date, big cities will have to bid adieu to a few four-wheeler models, which once helped their companies promote brand and build volumes.