Optrica Technology — threatening for case and money

Respected sir/madam
Hi my name is shuvendu mohanty, i got a call for the part time job, one lady called me and tell me about the captcha code filling that i have to fill 10, 000 captcha in 10 days in which 90% should be correct and they send me one link through which one app had opened where they said to upload my photo and signature along with they asked me to send my adharcard photo in email id and i have send them after few minutes they send me a agreement where they put my signature and photo without my permission and there it was written that if i didn't complete it in time or if 90% will not correct then i have to pay the penalty of rs 5000/-. Next 10 days he ask me to payment 5000, otherwise i will case on you. Then i affraid and give them 5000 rs. Now another advocate (Mobile no-[protected]) was called me and told we will case on you. And you will come mumbai high court. Plz sir help me. I am a student, plz sir my carrer will be destroy, plz sir help me.
Please help me to resolve my problem a quick action will be expected from my side.
Thanking you