India, home to one of the world’s oldest civilizations, is showcasing the culinary traditions of the 5000-year old Indus Valley civilization that was discovered just 100 years ago. Archaeological research has shown that it was an advanced civilization with well-developed cities. An exhibition ‘Historical Gastronomica’ in New Delhi conceptualizes the food that the South Asians living here ate. Anjana Pasricha has a report.