What is a credit report?

A report containing detailed information on a person's credit history, including identifying information, credit accounts and loans, bankruptcies and late payments, and recent inquiries. It can be obtained by prospective lenders with the borrower's permission, to determine his or her creditworthiness.

A credit report contains information about your credit - and some bill repayment history - and the status of your credit accounts. 

Its the report your historical payment history of any loans or bills or due to banks or financial institutions. You will get good rating or score if you are sincere and punctual customer and never defaulted otherwise you will get the bad score as per your historical bad payments or defaults to the respect institutes. I think it is CIBIL or some organization manages and issues the report on request.  My2 cents. Thanks.

A credit report is a detailed record of your credit history. Your credit report is maintained by companies known as credit reporting agencies or credit bureaus. Creditors and lenders use your credit report to determine your risk as a borrower.

It is a credit report that contains of credit history which reported to the credit agency.