FIR lodged against me u/s 420,467,468,469. How should I defend myself

Kindly advice the defence strategy I am an accused facing trial. Prosecution has examined informant and their junior officers, the punch witness and two candidates. The state which is prosecution has story line .... Few candidates approached TACO company claiming jobs with xerox copy of appointment letter. Which was identified to be fake. Candidate took the name of hr consultancy from where they got this letter. Company filed the case againt 3 accused. FIR was lodged. Chargesheet wad filed. Complainant was examined ..stating he recived xerox letters from few candidates claiming job. We got the letters found the xerox letters fake did the complain. The company did not have any fiancial loss but loss of goodwill. Two junior officers stated similar story with few condtradiction. Punch of prosecution became hostile saying i just signed where i wad asked to Two candidated said we have never recived any letter and had never been to the comapny for job FEW More witnesses to be examined