"Cases have been registered against several Congress leaders including state Congress in-charge Jagdish Tytler and Niranjan Patnaik on charges pertaining to Thursday's violence," deputy commissioner of police Nitinjeet Singh said.
Singh said five cases have so far been registered at the Capital Police Station and Kharavel Nagar police station while efforts were being made to identify those responsible for the violence.
The charges were criminal conspiracy, rioting, causing grievous injury, endangering lives of others, outraging modesty and mischief under IPC and Prevention of Destruction of Public Property Act, police sources said.
While over 34 persons have been arrested for the violence and attack on a woman constable, who was critically injured, more arrests were likely after identification of culprits from CCTV footage, assistant commissioner of police Nihar Das said.
The Congress, filed a counter FIR against chief minister Naveen Patnaik who is the BJD president and the police for attack on partymen and for trespass in Congress Bhavan.
"We have filed two FIRs at the capital police station seeking action against the people who assaulted our partymen and forcibly entered our party headquarters," OPCC president Niranjan Patnaik said.