Akt Enterprises — fraud calls and emails

Address: thane east, Thane, Maharashtra, 400603

I took a job from akt enterprise on 11 november. The job is about typing captchas, they insisted that i have to type 7000 captchas in 7days with 90 percent accuracy or else i have to pay them 5100rs. I also got a contract telling the same. I have send picture of myself and a picture of my signature (I did not manually sign any contract), they assured me that the work will be very easy and they have more than 6000 customers doing this work and none of them have failed. But that was definitely not the case. The job was impossible to complete because there was many technical errors with the app which prevent anyone from completing the job like we could not tell the difference between i, l and | (Slash), and many other errors. They also provided a complain department phone number but when i call them they are switched off, also i called priya mam (Who provided me work on whatsapp through quicker) but didn't replied once or attended my call. Obviously i could not complete the job and now they are blackmailing me for 5100 rs fine as written in fake contract or else they will file a case against me. I have also searched online about these jobs and akt enterprise and found out that this company is fraud as i saw a complaint against this company. Please help me to escape from this trap.