In this consolidated judgment, the Delhi High Court dismissed writ petitions seeking mandamus and certiorari against trademark acceptance orders, holding that Section 19 of the Trade Marks Act, 1999, grants the Registrar discretionary suo moto power to withdraw erroneous acceptances without provision for third-party applications, directing aggrieved parties to opposition under Section 21; allowed appeal against refusal order due to Registry inconsistencies, mandating unified adjudication of related proceedings.