Market cap — the size of the company

Market cap = share price × total shares = price to buy the whole company. Large-cap (₹ lakh crore+) companies are big and steady, mid-caps are growing, small-caps are young — they can grow fastest but also fall hardest. A ₹50 share isn't "cheaper" than a ₹5,000 share — what matters is market cap and value, not the per-share number!