A credit score is a three-digit number (300–900) that summarises your credit history and signals your creditworthiness to lenders. It is calculated by Credit Information Companies (CIBIL, Equifax, Experian, CRIF) based on your repayment history, credit utilisation, length of credit history, types of credit, and recent enquiries. A score above 750 qualifies you for the best rates and highest loan amounts. A score below 600 leads to rejection at most mainstream lenders. Your credit score is the single most important factor in determining whether you get a loan, how much, and at what interest rate.