Marriage

My sister married a guy recently but just after some days the guy told her that he isn't physically fit & has some medical problem she should think of her career & leave him,then my sister waited & told him to consult doc and see his options but the guy wasn't interested but somehow went to doc but the reports are pending while he doesn't care for her, doesn't talk with her pretty much nothing at the moment then he starting starting issues with her,creating fake issues then her in law's started telling her also that she should think of her career,then our father contacted them & told them what their issues are.But after some days the boys cousins said to my sister that he is all lieng he just doesn't want to be with you and is getting now fake reports to leave you,now we don't know what to do,what are our options legally,this is equal to a rape as he just was with her for few days and now she must leave him,what are my legal options to atleast send them to jail for lying to us & that guy who himself is causing an issue.