Direct vs Regular Plans
The most common comparison is between Direct and Regular plans of the same mutual fund. Regular plans have a higher expense ratio (commission to distributor), usually 1-1.5% higher.
As this tool shows, a mere 1% difference in fees can result in losing 20-30% of your total potential corpus over 20-25 years due to the compounding effect of fees.
Disclaimer
Educational Use Only: This tool is meant for estimation purposes. Actual returns may vary based on market conditions.