Portfolio rebalancing has two benefits both of which increase your chances of achieving your goals:
a) It moves your money from old or non-recommended funds to our latest recommended funds (which we update yearly). This helps you earn higher returns on average than if you stayed invested in old funds. For more details about our Mutual Fund selection strategy see here.
b) It keeps your risk under control by adjusting the asset allocation if it has deviated from what it should be according to your goal plan.
If you want to read in more detail about portfolio rebalancing, click here.