Hi Brajesh, Here is my take on it.
While I do not know how CIC works, basis my understanding, I beleive, that they will do "Sanctions" check for all applicants against each countries data base E.g. US is OFAC, UK is HMT.
These lists are nothing but an extract of all the names of people who are identified for Money laundering or other Nefarious activity.
E.G. a "Peter Bin Kumar" will be red flagged as the list may have a name as "OSAMA BIN LADEN" and in this case, "BIN" matches.
Once red flagged, they are second and 3rd level checked to ensure that the person is safe and the flagging was a coincidence of the name.
However, I think the rest of the batch, where there were no red flags will go through.
The red flagged ones may get delayed as long as they are not identified as the actual people in that list.
This is a crucial check to protect the sovereignty of a nation and no country will take it lightly or try to speed up this process.