[Resolved]  Naaptol Online Shopping — received fraud call and sms

Hello, today i received an sms even got call from naaptol. The person whose name is aman sharma he said i m the lucky winner n i won tata safari worth rs.1280000 n he have given me other option if i don't want car so i can have cash prize too.in both case i have pay registrarion cost of rs. 12800 for this i have to provide my saving account number through sms. When i offered them cross cheque they denied to accept it. So i got doubt n i just simply said i don't want it. But my query is how they come to know what we have purchased last item from your company n what was the cost of particular item even they have list of purchased date. Is there someone who is involve from your company...??? How they got whole details... Please take serious action against them.