HDFC Bank — I'm complaining about mirevenue hold through gefu

Hello,
My name akarsh v m
Account number: [protected]
When i checking my account i found that i hve -885.00 balance is available. I am shocked because i haven't done any transaction untill now. Since account open currently.
I gone through why this has happened? Ifound some revenue hold it was.
What is mirevenue hold through gefu?
Don't deduct any amount from my account.. Even you don't informed about this holds during account opening. I am dissatisfied all your process from creating account on words. Too much delay and now amount on hold. You are not customer friendly.