A NATIVE-BORN writer, Amit Chaudhuri, says that Calcutta should be compared to world cities like New York and Paris for its rich past and mix of influences. Yet ever since the Suez Canal was built in 1869, boosting trade in Bombay (now Mumbai), people have said the city (now Kolkata) has been going to the dogs. They have been right. Calcutta lost its title as India's capital a century ago, and its status as the country's industrial engine in the 1950s. By the early 1970s visitors were making apocalyptic predictions of plagues and starving, rampaging mobs, and by the end of that decade Marxists were in charge. Today Kolkata evokes Havana, beautiful but shabby, the last city to remain largely untouched by India's 20-year boom. “I love the city, but am ashamed of its condition,” says Sandipan Chakravortty, boss of one of the few units of the giant Tata Group to be based there.