Dear Pramod ,
You must have a BA (H) degree in the concerned subject with at least 50% marks in aggregate. Then only you will able take admission in MA with same (Sociology ) honours .But as per you query you had complete your graduation in Hindi and Sanskrit without honours of sociology in BA .So you will not take admission in same .
Hope it will helpful
For more information you can go through the official website of BHU Varanasi .
Thanks
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