This can be said about any policy. And there is no way to find out how execution will go without at least trying to execute vs. complaining that execution won't work.

Funny. Because when you read my post you will certainly see that I explained the execution part. Good income source for Mumbai -- fines for littering that is. When fines are high enough and cops get their monthly quotas of them - as explained in my original post - this would lower the scale of the issue if not resolve it completely. I also have given an example of Singapore with large Indian population where this has worked.

It seems some people prefer to always complain than to actually at least try doing something...