New Delhi, Aug. 8 -- Planning retirement is not just about setting aside a portion of your monthly income. It is much more than that. Due to rising life expectancy, healthcare costs, inflation and evolving tax rules, a few common mistakes can meaningfully impact financial security during one's golden years.

To combat such a situation, financial experts suggest a disciplined approach towards long-term investment planning. Dedicated investments, along with focusing on the bigger picture, are a must rather than chasing investment products alone.

One of the most serious investment mistakes investors make is delaying retirement planning, procrastinating even on the most basic steps, and, in some cases, relying entirely on a single investment...