CBSE — High Standard Question paper in Unit Test

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Kolkata, West Bengal

I study in BDM International, Kolkata.. In our recent Unit Test, a high standard question paper was set in Maths which contained sums from JEE standard books like SN Dey or IIT Mathematics. These were not taught in school and the teachers also did not tell us to do these books. Moreover, the same question paper was made for Commerce(Maths) and Arts(Maths) student. Is this fair? Please take necessary steps.