They read these right after communion, before the final blessing. And this time around, the first few were with both the parties with very Catholic names. Except the last: the man was Catholic from Santa Cruz. The woman had a very obviously Hindu name. When I heard that, inside I was going "yes! yes! finally!", since the last inter-religious wedding I went to (or more accurately, performed for, back when I used to play the organ for the church choir) here in Goa, the parish priest then had refused to read the banns. But, he did let them have a Catholic ceremony in church, so I don't remember what his objection to reading the bann was.
On second thoughts, it may have been a patriarchal thing and the banns were not read because the man was not a Catholic.