Yes, you can file perjury, and you can also file a host of ther cases, like defamation, causing mental cruelty etc to you for filing a false case. For perjury to be proven, you would need to have strong evidence on your side to shoe that she had been deliberately trying to mislead the law.
I think you should take advice from an experienced lawyer. Visit www.lawkonect.com. Here you can post your query and a detailed written reply would be provided to you by an experienced lawyer. You can also avail consultations with a personal lawyer on this matter through www.lawkonect.com. It is very essential that you get to know about your options well and for that i think you should take professional help.