The opposition party has been focusing on the newly formed Pasir Ris-Changi GRC. SINGAPORE: The Singapore Democratic Alliance (SDA) has again deferred announcing whether it will contest Punggol GRC at the General Election on May 3. During a party walkabout last week , SDA chairman Desmond Lim said a resolution on the Group Representation Constituency would be reached this week. But on Sunday (Apr 20), he said the opposition party would reveal its decision on Tuesday, a day before Nomination Day.