Nv Technology — fraud agreement and notice and blackmailing

Address: Shop No.1, JT Chembers, opp. Session Court, Jalgaon, Maharashtra 425001, 431136

I received a call from nv technology on 25th of sep 2019 and asked me to do a job that is click 150 links for 10 days and you will get 5 rs per link. I agreed and after registration i came to know that it is fake. So i stopped working and now after 10 days an advocate sent me a notice in my mail. The advocate's name is aditya mane
Sai nath plaza, kava rd, majge nagar,
Aurangabad,
Maharashtra, 431136
They are calling from this number [protected] and asking me to deposit 3000/ +1500/ in company's bank account.
Its look like they black mailing me and threatening to making the payment.
So please if you could help me to teach them a lesson. It would be very helpful.