So Services — fake legal threats coming asking 76000 rs as fine

I was searching for some data entry job 10 months back and signed up for so services. They asked for signature and photo and once i send them, they have sent me some legal contract with my sign on it.
Now they were asking for 7000 rs as a fine or they will file a case against me in surat civil court.
At that time i was afraid so i made the payment and they handed over a noc for that. (Which is total fake)
But now, after 10 months a person named (Vivek mehta) is calling me from [protected] saying that he is speaking from arbitration house delhi. He is now saying that a notice is going to release on 4 pm today. If i don't want this notice then i have to pay, 7600*3=22800 otherwise if the notice is released, i have to pay 7600*10=76000. Please help, what should i do now?