@ saki
I appraciate your explanation and matter is much clearer to me now except the following !
3. As long as you have a required job experience you are good to apply dont worry about being overqualified.
You have just told that incomplete application / not meeting the crieteria will be returned and fee refunded.Now if i apply choosing a profession from list of 29 NOC's (for which i feel i am over qualified), and CIC is of the view that it does'nt fit aginst my qualifications, WILL MY APPLICATION BE RETURNED NOT MEETING THE CRIETERIA or this usually is decided at a later stage of processing in which case we can not expect any refund.
See there are people who applied for NOC without having any particular degree in that field for example there was 4131 and university lecturer applied in that NOC but they didnt had any qualification related to education but they have done through. CHC is more concerned about having the required experience if you have the qualification its a bonus but they dont refuse on the basis that you are simply over qualified and yes it is decided at the visa office not at first stage.
Cheers
Saki