HDFC Bank — Deduction of Depository charges from my account without any intimation

Address:

Bangalore, Karnataka

I have my salary account in HDFC bank.An amount of 266.07 has been deducted from my account without any acknowledgement or intimation and that was the amount in my savings account on that day.don't know if they have deducted more if my account has more amount.I need my amount back and also I need justification for this.