As the financial year draws to a close, everyone is in a rush to meet their tax receipt deadlines. If you are planning to invest in a tax-saving mutual fund, such as equity-linked savings scheme (ELSS), then exercise caution. The reason being that you will have to stay invested for three years due to the mandatory lock-in even if the fund underperforms. That’s why, it becomes crucial to choose a fund, which has a good track record and has the potential to deliver better returns in the future.