Wife Was Pregnant With Lover And Claimed Its My Baby Causing Trauma

I am an Indian male (Hindu). My wife (An american citizen) got pregnant with her boyfriend in US. Once she came to know that she conceived, she tried everything to initially tell me it's my baby and later, when I asked her to go for abortion, she give me extreme mental trauma telling me I'm heartless and want to kill her baby. Later when I finally didn't bend as per her needs, she came back and said it was a pseudo pregnancy. In reality she got abortion done. She has all these confessions done while chatting on an Instagram chat. This chat she had with me (under a different identity) and wasn't aware that she is revealing all this to her husband. I want to know that as per Indian law can i file a case against her (apart from divorce) for this attempt to cheat me and later causing mental trauma. Please advice.