Reference number 251
2 advertisements on PakistanJobs.net carry the reference number 251. An address that names only this number cannot say which advertisement you want.
Advertisements with this number
Jobs in Ministry of National Food Security and Research
A summary of the listing, not the full advertisement.
The 2017 job board kept its own numbering, and its listing 251 is a different advertisement: Non-Teaching Jobs In The University Of Lahore (UOL), Islamabad Campus.