Hi Sudha. This sounds like Gambling Issues International, a listserv I developed and ran between 1999 and 2016. We had members from many countries. GII was a useful exchange for clinicians, researchers, educators and others. If my experience can be of use let me know.
The Gambling, Gaming & Technology Use Community of Interest brings together addiction and mental health service providers, researchers and subject matter experts in the fields of gambling, technology/Internet use and video gaming to collaborate and share knowledge on emerging trends and clinical best practices.