The Central Bureau of Investigation (CBI) has filed an urgent appeal in the Delhi High Court challenging a lower court’s Friday (February 27) order discharging former Delhi Chief Minister Arvind Kejriwal, ex-Deputy CM Manish Sisodia and 21 others in the high-stakes Delhi Excise Policy scam case, signalling that the legal battle is far from over despite Aam Aadmi Party’s (AAP) triumphant celebrations.