Formfilling — Illegal agreement

Hello
I was looking for part time job. 19/06/2020 i got an unknown phone call from male executive (B Patel)for part time online form filling job, he gave me company name as formfilling company.
Work profile1000 forms in 10 days with 90%accuracy and salary would be rs 20, 000 i. E. Rs 20 per form. He asked for my id proof email id alternate contact no. Through whatsapp no.[+[protected] and said i need to register through app.
Few minutes later i received whatsapp form that guy.
He sent the app link on my whatsapp no. After downloading the app executive called and said to upload signature and photo through app. Few minutes later i received another mail and this time from agreement department sakshi mehta ([protected]@gmail.com). I was literally shocked!!! It contained contract agreement with formfilling company with my signature but the signature was digital and stamp on agreement has date 8 jan2020 and i had communicated with them today so why stamp has date of january on it without my knowledge and approval.
I realised that i was the victim of job fraud/job scam. I did some research on internet and found many complaints against the company. Also the address mentioned happens to be address of many other companies such as frontech etc.
Address: g-402
Sonic arcade nr. High school, morbi, gujarat.
I found many complaints against it also. I was now sure that this company is fraud.
Today i contacted helpline numbers [protected], [protected] in order to cancel my registration. Female executive responded that i need to pay rs. 5500/- for cancellation. After that again told me to pay 55000/- for another 10 months. Again they told me to pay amount otherwise legal case against me will be taken.

Please help me in this situation. kindly do something so that i can get my money refunded please.
Hope my complaint gets resolved as soon as possible.
Also strict action should be taken against such fraudulent companies.