New Delhi, Aug. 4 -- The production of Hindustan Ambassador might have stopped in 2014 but on the streets of Kolkata, you can always flag down a yellow taxi. Never mind if it's falling apart: a door could be jammed or a window won't roll up-or down. On a recent morning, I came across this Amby; the driver had scrubbed it clean to a mirror-level finish. Spread out across the bonnet to dry was a green gamcha, the everyman's moisture-wicking, multi-purpose cloth used as a towel, scarf or headwrap and found in practically every Bengali household. The moodboard was spot on. While the car, like the city's trams, fuels nostalgia-now kitchified on mugs, pen stands, cushion covers and what not-the gamcha has for some time now crossed over into the...