Where to file my case

Hi Sir, I want to file a complaint against a MNC . I manger physically assault me in office party after taken alcohol. When i complaint to the HR department they are not ready to take against him because of his good approach. He filled a "fraud sexual Harassment" case against me . I appeal to the management to watch the cctv footage of the party but the just ignore my appeal and after 30 meetings and 120 days they said the sexual Harassment against me has not been proved because of inclusive of proofs. But when i asked about my case against the manager they said that the action is confidential ,we can't share with you. So, i filled the FIR against the manager but company terminated me on next day and said my action is against the management reputation. I want to know where i can reach out for justice. -Labor Court or District Court. Should i filled a criminal case against the vice president of the company because of reach out to him lots of time but they didn't help me on the case. Should i filled Defaming case against the company.