Dear you need an NOC from KArachi driving authority stating the issuance dates of all licenses you have had and expiry. Check this thread of mine "how to get driving license for Pakistanis". I have given a sample of NOC I obtained from traffic police in Islamabad. I know a friend of mine who has obtained NOC from Karachi and he got full G license in Ontario. Check this linkmkmisc99 said:Dear , i am here in BC and applied for my DL , i have PAK DL karachi from last 34 years and last year i have changed it to computrize one , in licence its printed that first licence was issued in 1979, but ICBC take my PAK DL and NOC letter for verification and issue me Learner licence (which is useless as i cant drive car on this without any full licence person who is 25 year old atleast), now when i inquired him about my PAK DL verification they told me we are not satisfied with these and you provide complete driving history , i dont know what they required know, my question is how i satisfy him about my licences ( when i first visited ICBC they told me they have seen this type of licence first time)...I dont know what i do... please advise me... as i go through whole process it takes 3 years to get DL in BC.
http://www.canadavisa.com/canada-immigration-discussion-board/how-to-obtain-canadian-driving-license-for-pakistanis-t132248.0.html
http://imageshack.us/photo/my-images/842/scan1ey.jpg/
In your NOC you must state that your first driving license was issued on "that date" and then you got new computerised license on "that date"
If possible also try to attest NOC from ministry of foreign affairs.
I got NOC from Islamabad and attested from ministry of foreign affairs. My NOC was accepted in Ontario and I now have full G license.
Good luck