So, it’s finally happened. The Delhi excise policy investigation last week claimed its highest profile political casualty, with the arrest of Delhi’s Aam Aadmi Party (AAP) chief minister Arvind Kejriwal. The probe has already netted Kejriwal’s number two and former deputy chief minister Manish Sisodia, AAP Rajya Sabha MP Sanjay Singh and K. Kavitha, Bharat Rashtra Samithi leader (BRS), daughter of former Telangana chief minister K. Chandrashekhar Rao. The action stems from a 2022