New Delhi, Sept. 29 -- India's cities are repositories of layered histories - Mumbai with its colonial trading ports and textile mills, business and Bollywood glamour; Delhi with its imperial capitals and Partition scars, Kolkata with its literary salons and revolutionary past, Bengaluru with its transformation from garden city to tech powerhouse. Yet, unlike western cities such as Amsterdam, New York, or Berlin, where city museums chronicle the evolution of the metropolis itself, India's megacities do not have spaces that tell their stories. The gap is striking. Most of roughly 1,000 museums in the country are artifact-driven, built around archaeology, natural history, or national icons. Very few tell the living, evolving story of their ci...