Born in Ondarroa, Xabi, who has previously excelled in teams such as Eibar and Real Zaragoza in La Liga, will hope to make his mark in the bottom placed Delhi Dynamos team which has just won one game this season.
"Xabi brings a lot of experience and can help us to stabilise our way of playing. I am sure he would fit in well in our scheme and in our game philosophy," Delhi Dynamos Head Coach Miguel Angel Portugal said.
"I am excited to welcome Xabi. He brings a lot of experience and has played against the world's best. He will be a calm and solid presence in our net," Delhi Dynamos Director Rohan Sharma said.