A blue-chip stock is a share of a large, well-established company with a long record of steady business, such as Reliance Industries, TCS, HDFC Bank or SBI. The name comes from the highest-value chip in poker. Blue chips are usually large caps, part of Nifty 50 or Sensex, and heavily traded, so buying and selling is easy and spreads are small. Many first-time investors start with them for exactly that reason. Being a blue chip does not mean the price only goes up. Large companies fall in bad markets too, and some slowly lose their position over decades. It means the business is less likely to disappear, not that the shares cannot lose value. If you plan to hold a stock for years, understanding what the company earns matters more than any label.