In theory there is no difference between DD and CC. I am a july 15th guy and my application was reviewed on October 30th and presented DD on the same day. HDFC cleared the DD only on Friday which was 5th of the novemember and That was notified to me by my personal banker. On 6th which is a Saturday , they updated my first entry stating my application is in process .
Interestingly when I spoke to a CIC representative well 1st or 2nd ,well before the DD encashment that my application was already sent to NDVO. This was a quite surprise for me as the DD was not cashed and no PER was given .
MY PER was finally arrived on 13th NOV but per CIC representative my application was send to NDVO on 1st or 2nd week.