[Resolved]  Oc Technology Gujarat — Cyber crime

I found the job through quickr.com and the company name is oc technology gujarat. They offered a job - online captcha typing work in your android phone at home.
After downloading the app and i informed them, i couldn't submit my, app is not working then they said we'll get back to you. After that, i mentioned that i cannot work for the company.
And they said our department will contact you but they never did.
Now after a few days, they called and also emailing that we have filed a case against you for not completing the job and they are asking for a penalty of inr 8, 500.
They are blackmailing me over the whatsapp, email, and calls even i have all the supporting documents that i have made no mistake and i have already mentioned then i won't be working for you.
But now they are sending emails to get the money with different email ids and also saying that they have filed a case against me in the court.
I have all the email and screenshot to submit as a defensive proof

Note: during this mental harassment, i tried to find about this company and over the google, i found they are doing this with lots of people and many people have submitted a complaint against them over various consumer forums