@A_Rehman and Razila86
Only MBAs ( MPAs for HRM ) can apply for the post as they have mentioned catgoricaly. No other qualification of any nature would be considered to its equivalent. NBP is a Govt Owned bank and they are very strict regarding the criteria laid down by them thus I would advise the Non MBA to not waste thier time and energy in applying for the post.
I am giving below the link bearing advert of the post entailing the eligibility criteria.
http://nbp.com.pk/careers/Application_Form_MTO.pdf