Honestly NDVO has no choice but to move to May applicants next (they are so behind compared to last year when they dealt with July applicants by now)- because most April applicants who had a "NA" BCG status have got some sort of update from them already (either in the form of BCG IN PROCESS or DM or PPR); there are few April left but again their BCG status is "your app is in progress.. ) Looks like they will be dealt with as backlog/ with early May applicants along with the other months who are waiting but NDVO has no business in not moving to the MAY applicants now- I am guessing next week we will see first week of May applicants with updates *fingers crossed*
