These three-digit number that makes lenders worry about how likely you will get a loan approval or a credit card. It is important to score higher to achieve your financial goals.
Following are simple ways that can help you build your credit score stronger:
Timely payment of bill
Get rid off debt.
Maintain low balance in credit card
Increase the amount of payments
Wise use of credit
Keep a close watch on your credit.

Below is another answer to a similar query explaining the factors that can affect your credit score: