State Bank Of India [SBI] — Fraud transactions are done on my account -OTHPG

Address:

Howrah Kolkata India

I just came to know today that there are fraudulent transactions done on my account. When I checked the history it was something related to OTHPG- Noida. I checked my paytm and these transactions were not reflected on my paytm either. But it's a Paytm destination address it's reflecting where my money is credited.
I raised this with Paytm as well and they asked me to raise it with the bank as no transactions have been done there.
Also, many other transactions happened as well which in total equals to near about 12000 Rs. Details are seen as OThPG - Noida.
I tried checking with the bank as well but the employees there are not giving me satisfactory response.
Please look into this on priority.