• *DLF* is still 43% below its all-time-high price of 2008. • ⁠*Tata Steel* has given a poor 7% CAGR if someone held the stock from 1994. • ⁠*Zee Media* has given a return of just 5.5% since its listing in 2007. • ⁠*Suzlon* is still 55% below its listing in 2005. • ⁠*Reliance Power* is still 88% below its listing in 2008. • ⁠*Vodafone Idea* is still 81% below its listing in 2007. Investing should be done based on sectoral and individual company analysis, and not blindly simply because a company or a business group has a big name. This also teaches to diversify. Having a sensible portfolio with capital spread across multiple companies reduces risk. Any company can fail no matter how good it looks today. Examples: Lehman Brothers, Enron, Kodak, Blockbuster, Compaq.