KOLKATA: The West Bengal government on Thursday approached a single-judge Bench of Calcutta High Court seeking permission to register an FIR against Leader of the Opposition (LoP) in West Bengal Assembly, Suvendu Adhikari, over the latter’s participation in the ‘Nabanna Avijan (march to state secretariat)’ on August 9 that was marred by violence, on the first anniversary of the rape and murder of a woman doctor at R.G. Kar Hospital.