New Delhi, Aug. 27 -- A portfolio review may reveal stocks and mutual funds that have been underperforming for years and no longer play a meaningful role in your investment strategy.

Holding on to such investments simply because they have been part of your portfolio for a long time could mean missing an opportunity to put that money to better use.

Such investments are often referred to as 'zombie investments'. Here's how investors can identify them and assess whether they still deserve a place in their portfolios.

Arjun Guha Thakurta, Executive Director, Anand Rathi Wealth, explained that an investment is considered a "zombie investment" when it continues to sit in the portfolio even though the original reason for holding it may no lon...