www.parisar.org

Only vehicles meeting certain exhaust gas standards are allowed to enter the inner city area. Vehicles with particularly high emission levels are banned since February 2010.

Walking on the roads in any Indian city is an unpleasant business. Dodging traffic, sidestepping puddles of water, ducking under sign boards, navigating around heaps of construction material always conveniently dumped on footpaths - a pedestrian is faced with an unending series of obstacles. Most of these are because of the sheer apathy towards a walker by the public authorities, somehow you're just not important enough to be provided a nice walkable pathway.