Csr — csr fraud/blackmail

Hai I received a phone call from one woman named Pooja from Maharashtra, hse told me that she is from CSR company, and she will give online work to me, she sent me an electronic document with freelancer work agreement and she told me to digitally sign the document, after that she asked me the ID proof, I belieaved her and sent the voter ID proof after that she didn't give me any kind of work, when I called her, her phone was switch off and no other reply was there, after nearly 10 days some persons are calling me and blackmailing me to pay nearly 5000 + 3000 to their account, they are telling that I could not complete the work that is why I have to pay the penalty amount, but they actually cheated me they didn't give any work to me, recently I searched in the internet and I could find that many complaints about this fraud company, I am getting irritated now please help me