Hugo Loan — Loan scam

I downloaded the Hugo loan app.
I uploaded my docs and was checking eligibility.
However they deposited 4800 rs into my account without any consent nor confirmation.
I was bewildered from where this amount was credited.
So i didn't spend it
I have left it just like that in my account.
However a week later someone from Hugo calls and texts me about this loan
I was surprised and i told him
Yes i got some money and was unaware of this.
Please give me your details i will send back the money.
They asked me to pay 9k .
Upon questioning him.
He told it is interest and GST
For 7 days, it increased twice?
I told him.
No chance.
He disconnected the call.
Awaiting for next course of action from them.