Banks charge hidden charges to your account, be watchful

When you take loan, the Bank would inform you about the interest rate, and would not tell you about the hidden charges that are generally in shape of annual fee (2% to 3%), installment delay fee, loan processing fee and penal interest (2% to 4%). Why loan processing fee to be paid by the applicant? No justification because it is the duty and main job of a bank to process and loan.