How can I not remember Most conveniently connected to the Blue Mountain Express from Chennai, the Nilgiri Mountain Railway leaves the Mettupalayam station in the foothills, an hour outside Coimbatore, at 710am. The Unesco World Heritage-notified train is an engineering marvel that chugs through 16 tunnels, 250 girder bridges and 208 curves. The steepest mountain railway in India has a toy-like, blue-and-white, four-coach train of wood compartments powered by a puff-and-hoot steam engine, the valiant sound of which carries in the hills as it journeys up and down. The effect is more cute than magnificent, until we remind ourselves that Malaika Arora swayed to &lsquoChhaiya Chhaiya&rsquo on its roof. Taking a little over three hours to travel the 28km to Coonoor and, therefore, quite the liveliest way (given the chattering company) to have a sense of the Western Ghats, the train is the pride of the local railway staff, who are entirely patient with inquisitive tourists, especially children. The stretch between Kallar and Hill Groove (which falls roughly 3-4km uphill from Mettupalayam signage is handy), up a steep gradient, is widely accepted as among the most scenic. Shorter, one-hour services between Coonoor and Ooty (departures at 7.30am, 10.30am, 1.30pm and 4.30pm) run on a diesel engine.