Case against cheater for mentall harassment and abuse

Hi, this is varsha, i work with diamond firm, one of my friends reference ronak was in need of some work. So i suggested him to one my cliemt who deals in Jewellary, ronak took some jewelry from my client to sell, everything was fine untill payment due dats, he exchange design some time, and was talking in normal terms, but after couple of days post his due datenfor payment on calls to recover money he started abusing, my clinet who has given Jewellary on my trust started pressuring me for money, even i felt responsible so i use to ask for the payment. Everytime i use to call he use to abuse with dirtiest gali one can hear , couple of time i visited his residence where i was mistreated by his family member as if i had taken his money and was asking more money from him, i come from lower middle class with 30k salary with tought job timing in midst of all i was force to visit him affecting my job schedule and personal life as due to this my personal life also affected as i was newly married. I had invoved my sister as i thought if i go alone to his place they might feel insecure. So he started abusing my sister also. Matter was of 5.5 lac which was too big for me to replay to my client, so it was really a nightmare. My health also suffered because of this.and the communication i had with him was so dirty and abusive that because of that only i m planning to file complain but problem is in this type of transactions we do not make any agreement everything is done on trust. So all i have as record is his telephonic calls and chat which show how dirty he was, I don't want to file complaint for money as i know since i dont have any thing in writing will not be able to do. but for all the gali and abuse is is haunting and would like to file for the same. Pls suggest can we file mental harassment and misconduct complain? And wat kind of lawyer is required