Owners inevitably paint the exteriors in a cheerful riot of bright red, green, orange, blue and yellow and line the un-air-conditioned cabs with teakwood to keep them cooler in India's searing heat.
With their orange, duck-like feet, black-and-white penguin body and bright red, parrot-like beak, puffins have an irresistible charm, despite their ridiculous appearance when airborne.