I am well aware of Indore's cleanliness, also of Sikkim, and of Asia's cleanest village Mawlynnong in Meghalaya, although I haven't been there, sure.
There are always exception, but nation is judged on majority.
These are indeed exceptions and other states and countries should try to learn from them. It does not mean that the above mentioned places dont have any problems, but these are exceptional things among them.
Our country has often put in money in places that dont need them instead of spending on things that are needed. But we cannot change the ourselves, it is ultimately the decision of the politicians running the government.
After every change of government as well, the basic structure remains same and the new party simple rules over the spoils of the last one.