Credit Score plays an important role when you apply for a credit card or loan. It is a 3 digit number that reveals the creditworthiness of an individual to banks and other financial institutions. Credit Score is calculated using your credit history, which contains information such as your payments history, number of loans or credit card used by you, etc, there are 3 major Credit Information Companies, namely Transunion, Experian, Equifax. A high credit score increases your chances of getting a loan or credit card and a low score completely ruins it. Banks do not like to give loans or credit cards to people with a low score because they do not trust them with their money. Despite having a low score, if you get a card or loan, then your credit limit may be low or you might have to pay a very high rate of interest. To prevent this, you must improve your credit score.