Data Entry Solution — fraud company

I got to know about this job through the worst site for job application - quickr. I applied, after which i got a whatsapp message from -[protected] and [protected] giving me details of the job and asking for a registeration fees of 690₹.
I made the payment to the following paytm number - [protected]
Their ifsc code is pytm0123456
After the payment was made they stopped responding and blocked me and weren't scared even after i threatened them to file a police complain. I am a student and 690 is a huge amount for me that i just lost in hopes of finding a job : (