Seem this is from local scam artist...calls from India call center had been stop.
Look like they got the voters-list..it's illegal to obtain such document, not to say to use it for other purposes.
check out this article...
"http://800notes.com/news/multinational-crackdown-on-computer-con-artists"
If you believe your PC infected with viruses...you can download a FREE virus scan program...
caller states they are updating your local on line yellow pages.More scammers. Criminals no longer rob you at gunpoint, they just set up banks of telephones,hire other crooks to call you, and use criminal ach/ credit processers to steel your money.