+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
Do bank charges some commission for this.

Any comparision with other banks e.g. HSBC
 
HSBC program needs you to consolidate a $25,000 balance with HSBC in Canada in one year same is not needed by Scotia.
Also I Scotia presence is much larger in Canada than HSBC
For Scotia, to transfer around CAD20K, you end up paying around INR 2000-2300, I do not know the HSBC costs