Dear Friend !
According to the Rule 5 of Pakistan Bar Council (Legal Education Rules) 1978, the duration of LL.B course should be of three years but there is no specific exception regarding to the Universities abroad. However I will try my level best to contact with Enrolment Committe or Legal Education Committe of PBC which will really guide both of us to the right way.
Pakistan Bar Council has no website and many of the peoples always remain complaining about it. Pakistan Bar Council (Recognition of Universities Rules) 2005 is also not available on the internet but it contains in book i.e "Mannual of Bar Council Laws"