WHEN TO REDEEM AN EQUITY MUTUAL FUND ?

1. If you have a single goal-based fund, you should decide on the basis of goal amount and goal period.
2. If goal amount has reached along with goal period, redeem and fulfill goal immediately.
3. If goal amount has reached much earlier than goal period (as in your case), start STP into a short-term debt fund right away to protect capital up to goal amount, while optimizing annual tax benefits, and continuing to complete remaining SIPs in that fund.
4. During this exercise, if you want to invest in an alternative new fund, you can do so through STP / SWP at this stage, instead of lump sum action, as it will enable cost-averaging new fund in long-term, after attributing a new goal amount and period to it.
5. If you have a well-diversified portfolio of funds, rebalancing your debt-equity allocation would be preferable - and also taking advantage of your windfall gains in "out-performers" to weed out "chronically ill" funds - to optimize gains till goal period.