If you are not given the certified copy of the complaint. File an RTI the very next day. Cite "matter concerning life and liberty" and ask for the copy within 48 hours. In Delhi and most metros you would get a copy by this method, but if you don't get copy of the same within stipulated time. You can move appelette authority immediately at the expiry of 48 hours.
When you get the copy of the complaint. Make a written representation to the CAW Cell, stating with some proofs how the complaint is false and why the same needs to be dismissed without the registration of the FIR. While doing so, give some proofs of your innocence, but not all proofs. As most of the proofs need to be saved for the main case at the stage of Evidence.