+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
I got passport request along with biodata and RPRF request few days back.

My question is,
Whether the filled in biodata form should be send to CIC along with the passports in regular mail?
Or can I scan the filled up biodata form and email that to ottpilot-immigration @ cic.gc.ca?
 
It is better to send the biodata form along with ur pasports. You can also email it to Ottawa.No harm.