Hello Neha,
As per the eligibilty criteria set by University of Calcutta, for General cat. you need to have passed your 10+2 in the year 2017-19, 2015-2019 for SC/ST and 2012-2019 for pwd , from a board or its equivalent recognised by Unversity of Calcutta.
Below is the link for the official notice for the same, you may go through it once.
https://www.caluniv.ac.in/admission/BA-LLB-27-5-19.pdf
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