New Delhi, June 10 -- Mumbai's gleaming skyline puts it in the league of the world's most iconic business districts. Yet, its image of overcrowding, captured by the sight of its suburban trains, endures. Over-packed carriages with passengers hanging out of open doors in moving trains have become synonymous with the city, with people identifying such pictures as Mumbai's without batting an eyelid.

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Its modern infrastructure has been at risk of being overshadowed by this gulp-inducing occurrence. Thankfully, change is on its way, with the Indian Railways announcing that all new rakes for Mumbai's suburban network will now have automatic doors, as with metro services. Existi...