FIR under section 419 IPC

sir a case under section 419 IPC against me saying that I have typed the typing test in the name of my wife. while my wife typed her test herself and signed same and I typed my test my self and signed same but the complainant alleged me that the typing test typed by me was in my wife name and I didn't made sign on that and left the centre without sign same while my wife signed her typing test. the complainant is showing only simple typed paper which is typed on note pad which can be edit any time without sign of anybody. there was special typing software. there was no videography . this is false case against me and FIR is registered after 6 days. what should I do now.