How can i take back the gift my family gave at time of engagement

got formally engagement before 09 months with a girl and it was all though an arranged marriage kind of set up.Now i does not want to get married with this girl because of personal reasons.At the time of engagement & after engagement we had given her gifts (Gold,Jewellery ,Cash etc) Please advise can we ask them to return all our precious gifts,be noted there was no grand function during engagement,all though it was simply tea party function,means they had not incurred much expenses during that time as only our family members visit her home.