Ffwork.in — blackmail and harass

I got a call before 3 month from ffworks. A girl on call she said i have a job for you with out any investment i reject her proposal but called again and again she ask me to adhar card and create my login account self after that she said if you not done company target you company charge penalty on you i understand which type is fraud this i never open her website but yesterday someone call me and demand of 6900 rupess behalf of penalty and said if you not pay money we well file case againts you number is [protected] why i pay money pls help sir i m a student and 6900 rupess is a big amount for me