Sitting on the ground floor of A highrise in Borivli's Rajendra Nagar, Cafe Hydro take its name seriously. You walk on glass floor embedded with pebbles, as if you are gliding on a seabed. But on closer look, we realise it's actually the replica of a railway track holding ballast. Above are panels with pop-coloured suitcases placed on berth-like cabins. "It's our tribute to the Indian railways, which according to us is a neglected service," says a friendly staffer sensing our confusion.