I need a lawyer

We had organized a scientific event namely XXX. The event was hosted at a conference organized in India. We had provided an email id to the conference (namely YYY) organizers as the contact details of our scientific event. However, YYY conference organizers had shared personal/official email ids of the official organizers of XXX workshop and their collaborators without exclusive consent in their communications with the XXX workshop participants. I wonder if this infringes the right to privacy of each of the organisers of the XXX workshop and is downright bad practice. I had raised my concerns with the YYY conference organizers but same actions were repeated. I wonder if any legal actions can be taken considering YYY conference organizers are based in India and XXX workshop organizers are based in Europe.