Again a fundamental rule to be followed who are seeking a writ of Mandamus from a High Court. First seek justice for the Concerned authority against whom the Writ is being prayed for. Once that stage is exhausted (successfully or otherwise), the litigant is good for filing the writ of mandamus.
Saumitra Anand and 4 Ors Vs Registrar General High Court of Allahabad and 2 Ors on 27 Jul 2020AP HC also held so in the case here.