Tikona Broadband — False payment notice and blackmailing call

I have said tikona to terminate service on Jan 8 and the modem was taken by the tikona representative on Jan 9 whom I used to pay my bill. But tikona has been sending messages and mails to pay the payment for January month and also now for February. I strictly informed them that I have nothing to pay since I haven't used your service for past two months. Now many fake calls had been done as pretending to be Delhi high Court lawyers telling me that " Tikona has filled a case against you due to non bill payment of rs.3200 and if I you don't pay it within half an hour then I will pass your case to court then you should come with your lawyer to Delhi for further proceedings. You also have to pay rs.25000 if the case is won". But I'm sure I haven't used their service and also have informed then on Jan 9, then why should I pay them. Userid:[protected]. Resistered contact no.:[protected] I won't like the service of blackmailing of this company. It is a big cheating. I need a resolve for this issue. Waiting for replies. Narendran