Owning a house is a cherished dream for many. There are several ways to save for a new house, but in urgent cases, people may be tempted to withdraw from their retirement fund. There are various financial products for retirement planning, and all have different withdrawal rules. In the case of the National Pension Scheme, partial withdrawals for special purposes like buying a house are allowed only thrice during the policy tenure. However, to avail the withdrawal facility, you should be an NPS investor for at least 10 years and you are permitted to withdraw only 25% of your contribution. If you have a PPF account, you can withdraw 50% of the accumulated amount, but only after staying invested for at least 6 years. The Invest 4G plan also allows partial withdrawals after five years of investment.