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The eligibility criteria for admission in MA Sociology in Delhi University, is that the candidate must have any Graduate/Postgraduate Degree in any subject from the University of Delhi or any Indian University recognized by the University of Delhi, 50% or more marks in aggregate or equivalent grade. 

OR

Must have passed B.A. (Hons.) Sociology examination of the University of Delhi, 55% or more marks in aggregate or equivalent grade.

Admissions are done on the basis of entrance test and merit.

https://www.careers360.com/university/university-of-delhi-delhi/ma-sociology-course