Source: http://www.ppsc.gop.pk/(S(bss2s4fjlw123hptti3phfo2))/Adds/Ad%20362017.pdf

Eligibility: Master’s Degree in Library Sciences or Library and Information Sciences from a University recognized by Higher Education Commission.

Age:

Male  21 to 30+05= 35 Years
Female 21 to 30+08 = 38 Years

Test:

One Paper MCQ type written test of 100 marks and 90 minutes duration
comprising Questions relating to Qualification of the Post and General
Knowledge including Pakistan Studies ,Current Affairs, Geography, Basic
Mathematics, English, Urdu, Everyday Science and Basic Computer
Studies.