Walls draped in lush vertical gardens and air filtered through purifiers insulate diners at a swanky New Delhi food court from the choking haze outside in one of the most polluted places on earth.
But these eco-eateries, offering cleaner air as well as modern menus to the well-heeled are beyond reach for the poor, who have little means of escaping the deadly smog which coats the city for much of the year.