If the PCC issue date is more than 3 months old on the date of app. submission, it is advisable to get a new one issued in the interim and should be turned in at the time of PP submission.
Kunal, you have definitely been lucky!
My previous PCC, dated Feb 4th was submitted with our app. on May 11th (reached CIC - May 13th) so it was 9 days past due! I did not risk it and submitted a fresh PCC (dated: June 23rd) along with my PP on July 21st. You never know if the VO goes 'by the book' or is easy going.
Unfortunately, I did not realize FBI US PCC processing would take 8 weeks as opposed to 3 weeks (last year), hence the delay!
Good Luck all!