Islamia University Bahawalpur offers Sociology as a private subject at Masters level. It's better to call and confirm it first directly from IUB admission dept. Registration and exam dates are announced at a single time. So, you can save your time also thru this way in IUB. The admissions start usually in April/May in IUB for Private sudents.

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"But screw your courage to the sticking place,
And we'll not fail." _Shakespeare, 'Macbeth')