Compared with all other metropolitan cities in the country, Delhi is by far the cheapest to live in, claimed Chief Minister Sheila Dikshit on Monday. Reeling off a series of figures to buttress her claim, Ms. Dikshit said while the annual rate of inflation at the national level during 2007 was 6.5 per cent, it was just 4.9 per cent in Delhi. "The rate of inflation this past year was much lower in Delhi compared with other metropolitan cities. While Kolkata recorded 9.1 per cent inflation, Chennai and Mumbai recorded 5.1 per cent and 6.3 per cent respectively,' she added.