Sneijder says the Real Madrid coach advised him to sign for Gala.
"I am happy to be here," he told reporters from the Turkish Press. "Before choosing this team I spoke with [Louis] Van Gaal and Mourinho, and they advised me to accept this offer.
"I also want to thank [Inter President Massimo] Moratti - our problems were only economic, never personal.
"I leave Inter on good terms - they allowed me to win everything possible."