Hi,

The re test or purak pariksha for class 12th student is conducted in the month of july tentatively after the declaration of gseb class 12th result.

Those candidate whoe fail in one suject, were unable to appear one or two paper in the exam or want to improve their marks can give this exam.

Unfortunately as you have 3 subjects  fail you can can not give the purak pariksha in july 2020 conducted by gseb. You can repeat and pass the exam next year.

Hope you find it helpful.