While Indian cities are definitely challenged infrastructure-wise in a lot of ways, the specific problem of rainwater management deserves to be given more focus

While Indian cities are definitely challenged infrastructure-wise in a lot of ways, the specific problem of rainwater management deserves to be given more focused attention. Most Indian cities receive a ton of rainfall in the span of a few weeks, and hence infrastructure needs to be designed for peak rainfall that is perhaps 5-10x of average rainfall. As with all things, designing a system to handle 5-10x peak utilization is significantly more complex and expensive, especially when it will be in peak use for maybe 1 of 52 weeks of the year. In some cities like Mumbai, Delhi, Bangalore etc., the economic downsides have finally started to outweigh the costs of dealing with this problem - but lack of local funding and executive leadership will probably keep infrastructure playing catch-up with future floods and climate change events. I would argue this applies to all other problems that happen due to scale of Indian urban areas - heat management, air pollution, waste disposal, traffic etc.