HDFC Bank — Negative balance in my account

Hi,
My name is vinay dhyani. I joined a company in the year 2019 and that company opened my salary account in hdfc bank. I left that job after few days because of study reason. At that time my account balance was zero and yesterday i saw that my account showing negative balance of rs.6, 619.70. I am totally shocked and worrying about the same that how it is possible since no single transaction have been done at my end.

Can you please suggest me any way that what should i do. Can it be waived or i will have to pay all these amount.