If there's one thing that I wish could change in India, I would vote for having a retirement age for politicians.
When there is a concept of retirement for many other careers like engineers, bankers, CEOs, etc. why shouldn't the same apply for politicians?
If the reason for a retirement age in the private sectors is that the capacity to contribute becomes lesser, the same applies for politics. If the reason is that they should have a relaxed retirement life, the same applies for politics.
If the old people retire, it will give a chance for younger people with fresher perspectives to come in (with the hope that 'remote control' possibilities will be minimal), and at the same time the bureaucracy gets refreshed more often with lesser influence by the older people.
Of course, I know it'll never happen, because the law would have to be passed by the very same people whose careers will be shortened.