The recent Delhi election,
I was watching videos of some of the slums.
There were literal hills of rotting organic garbage inside the slums. With children living next to them.
I had visions of Paul Ehrlich freaking out at the sight of people defecating and bathing on the roadside in Delhi.
I saw photos of some of the "mohalla clinics" (free basic healthcare clinics) that the previous Delhi government had (admittedly admirably) set up. Some of them looked so dirty and structurally unsound that they wouldn't be allowed to function as holding pens for farm animals in the US.
In the US, we have companies like Waste Management handle our waste. Surprises me that India doesn't have a dozen Waste Managements by now. Billion dollar unicorns/startups/whatever, innovating in turning "waste to wealth" (as Nitin Gadkari calls it). Put capitalism to use where there's a failure of non-capitalism to solve the problem. But there might be deep cultural issues. I suspect the caste system plays a part. The forward castes believe that trash management is beneath them.