An Index Fund is a type of mutual fund that tracks and replicates the performance of a specific market index.
Index Funds follow a passive investment strategy, meaning they do not try to outperform the market but aim to match the performance of an index like the Nifty 50 or BSE Sensex.
These funds invest in the same stocks and in the same proportion as the index they track. They are regulated by the Securities and Exchange Board of India.
"An index fund tracking Nifty 50 invests in the top 50 companies listed on NSE in the same proportion."