Oahmad BHC is still functioning as normal its only Visa application centers are closed look at this
"Our Visa Application Centres are currently closed, pending an urgent review of security following the attack on the Marriott hotel.
The BHC will post information on the consequences for those who have already submitted applications and who are waiting for the return of their passports on both this website and the BHC website,
www.ukinpakistan.fco.gov.uk as soon as possible.
The visa section within the HC continues to operate normally."